You might wonder if you need a 20l or a 30l dry bag for your next adventure. For most day trips, a 20l works well. If you plan a weekend away or carry lots of gear, a 30l gives you extra space. Both bags give you strong waterproof protection, but the right choice depends on your activity, how much gear you pack, and how long you stay out. When you compare a 20l vs 30l dry bag, think about what you usually carry. Outdoor gear surveys show people pick 20l or 30l bags for these reasons:
- Intended use, like water sports or camping
- Material, since waterproof durability matters
- Waterproof rating, especially for longer water exposure
- Size, to fit all your gear
If you want to keep your essentials dry, look for a bag with a reliable waterproof seal. Your best fit comes down to your gear and trip style.
Key Takeaways
- Choose a 20L dry bag for day trips and light packing. It fits essentials like clothes, snacks, and a towel.
- Opt for a 30L dry bag if you need to carry bulkier items or plan for weekend trips. It accommodates sleeping bags and extra clothes.
- Consider the weight difference: a 20L bag is lighter and easier to carry, while a 30L bag offers more space but can feel bulkier.
- Think about your activities: use a 20L for short hikes or kayaking, and a 30L for camping or multi-day adventures.
- Assess your gear before choosing a size. If you only need basics, a 20L is sufficient; for larger gear, go with a 30L.
- Both sizes provide strong waterproof protection, but ensure you close the roll-top tightly for best results.
- For family trips, a 30L bag is ideal as it holds multiple towels, snacks, and toys, keeping everything organized and dry.
- Remember to check the comfort of straps and handles, especially if you plan to carry the bag for long periods.
20L vs 30L Dry Bag Size Comparison
Capacity and Gear Fit
When you look at a dry bag size comparison, you want to know how much each bag can actually hold. The 20l bag gives you enough space for your personal items on a day trip. You can fit flip flops, a t-shirt, shorts, a micro-fiber towel, your keys, sunglasses, and your phone. The 30l bag steps things up. You get room for two outfits, an outer layer, a small tent, a lunchbox, and a water bottle. This makes the 30l a better pick if you need to pack for camping or a weekend away.
Here’s a quick look at the key differences in capacity:
| Dry Bag Size | Volume (Liters) | Volume (Cubic Inches) | Items it can hold |
|---|---|---|---|
| Small | 20L | 1220 | Flip flops, t-shirt, shorts, micro-fibre towel, keys, sunglasses, phone |
| Medium | 28L | 1715 | Flip flops, micro-fibre towel, t-shirt, shorts, sunglasses, running top, drinks flask, keys, cell phone |
| Large | 35L | 2136 | Sneakers, micro-fibre towel, t-shirt, sunglasses, running top, hiking trousers, water bottle, flask, keys, cell phone |
You can see that the 20l vs 30l dry bag debate comes down to how much gear you want to bring. If you like to travel light, the 20l is the ideal size for you. If you want to bring extra clothes or gear for camping, the 30l gives you the ideal capacity.
Weight and Portability
Weight matters when you’re out hiking, kayaking, or camping. The 20l bag usually weighs between 1 and 2 pounds when empty. The 30l bag weighs a bit more, between 2 and 4 pounds. That extra weight can make a difference if you plan to carry your bag for hours.
| Capacity | Empty Weight |
|---|---|
| 20L | 1–2 lbs |
| 30L | 2–4 lbs |
If you want something easy to carry, the 20l is lighter and more compact. You can toss it in your kayak or strap it to your backpack without feeling weighed down. The 30l bag is bulkier, but it lets you bring more gear. Think about how far you need to carry your bag and what feels comfortable for you.
Here’s a quick look at what you can fit in each size:
| Dry Bag Size | Example Gear Load |
|---|---|
| 20L | Jacket, T-shirt, Pants, Shoes, Light towel, Power bank |
| 30L | 2 outfits + outer layer, Small tent, Lunchbox + water bottle |
If you want the most portable option, the 20l is your best bet for day trips. The 30l works better for longer outings or when you need to pack bulkier items.
Typical Use Cases
You might wonder which activities match each dry bag size. The 20l bag is perfect for day hikes, kayaking, or short camping trips. You can use it for everyday activities, too. The 30l bag shines when you need to pack for extended outdoor adventures, like multi-day camping or backpacking trips.
Here’s a table to help you see the best use cases for each bag:
| Dry Bag Size | Typical Use Cases | Best For |
|---|---|---|
| 20L | Shorter trips and everyday activities | Day hikes and casual outings |
| 30L | Extended outdoor adventures with bulkier gear | Extended backpacking trips where waterproofing is critical |
Tip: If you’re not sure which bag to pick, think about your most common trips. For day trips, the 20l is usually enough. For camping or longer adventures, the 30l gives you more space and flexibility.
The 20l vs 30l dry bag question really comes down to your needs. Both are common dry bag sizes and part of standardized dry bag sizes you’ll see in stores. The 20l is the ideal size for light packers and short trips. The 30l is the best choice for camping, longer outings, or when you need to carry more gear. Use this dry bag size comparison to find your ideal capacity and match your bag to your best use cases.
20L Dry Bag: Pros and Cons
Advantages of 20L
Lightweight and Compact
You want a bag that feels light on your back. The 20l backpack shines here. You can grab your 20l and head out for a hike, bike ride, or paddle without feeling weighed down. The compact size means you can move easily, even in tight spaces. You can organize your essentials and keep them close. The 20l backpack fits well in a kayak, under a bike rack, or in a small locker. You don’t have to worry about bulk slowing you down.
Tip: The 20l backpack is easy to carry, so you can focus on your adventure instead of your gear.
Best for Day Trips and Minimalist Packing
If you love to pack light, the 20l backpack is your best friend. You can fit your phone, wallet, snacks, a towel, and a change of clothes. The 20l gives you enough capacity for a full day outdoors. You can keep your valuables dry, which matters most when you kayak or cycle near water. The waterproof design protects your electronics and gear from rain, splashes, and even UV rays. The 20l backpack uses tough nylon fabric and a roll-top closure, so your items stay safe and dry. You can trust it for hiking, kayaking, or cycling.
The 20l backpack also stands up to rough use. It resists scratches and scrapes, so you can toss it on rocks or dirt. Lash loops let you attach it to your bike or boat. You get a versatile bag that works for many outdoor activities.
Disadvantages of 20L
Limited Space for Larger Gear
The 20l backpack does have some downsides. You might find the capacity too small if you want to bring bulky gear. Packing a sleeping bag or extra shoes can feel like a puzzle. The 20l size works best for essentials, not for big camping setups.
Here’s what users often mention:
| Disadvantage | Description |
|---|---|
| Discomfort from straps | Bare shoulder straps can dig in, especially when the 20l backpack is full. |
| Lack of internal organization | The 20l has one big compartment, so small items can get lost at the bottom. |
| Warmth on hot days | The waterproof material can feel warm against your back in the sun. |
Note: If you need to carry lots of gear, you might want a bigger size.
Who Should Choose 20L
You should pick a 20l backpack if you love day trips, short hikes, or quick paddles. The 20l size fits your essentials and keeps them dry. You want a lightweight, waterproof bag that’s easy to carry. If you like to travel light and stay organized, the 20l backpack is a smart choice. You get enough capacity for a day outdoors without extra bulk. The 20l works well for students, commuters, and anyone who wants a simple, reliable bag.
If you often pack more gear or plan overnight trips, you might need a bigger size. But for most day adventures, the 20l backpack gives you the perfect mix of capacity, waterproof protection, and comfort.
30L Dry Bag: Pros and Cons
Advantages of 30L
Fits Larger Items Like Sleeping Bags
You want to bring more than just the basics. The 30l dry bag gives you that extra room. You can pack a sleeping bag, a small tent, or even a thick jacket. The 30l backpack holds more than a 20l, so you do not have to leave important gear behind. If you love camping, you will notice the difference right away. The 30l size lets you carry bulky items that just will not fit in a smaller bag. You can even fit your multi-day gear for longer trips.
Tip: The 30l backpack is perfect when you need to keep your sleeping bag and clothes dry on a rainy camping weekend.
Good for Weekend or Multi-Day Trips
You might plan to stay out for more than one night. The 30l backpack works well for weekend adventures. You can pack two or three sets of clothes, food, and even a towel. The 30l dry bag gives you enough capacity for a full weekend. You do not have to worry about running out of space. The waterproof material keeps everything dry, even if you drop your bag in a puddle or get caught in a storm.
Here’s a quick look at what you can fit in a 30l backpack for camping:
| Item | Fits in 30L? |
|---|---|
| Sleeping bag | Yes |
| Small tent | Yes |
| Two outfits | Yes |
| Food for 2 days | Yes |
| Water bottle | Yes |
| Towel | Yes |
You can see that the 30l size is great for camping and longer trips. You get more capacity and more options for packing.
Disadvantages of 30L
Bulkier and Heavier When Full
The 30l backpack does have some downsides. You will notice the extra weight when you fill it up. The 30l dry bag can feel heavy if you pack it with lots of gear. It takes up more space in your kayak or tent. You might find it harder to carry on long hikes. The bigger size means you need to plan how you pack. If you want something light and easy to carry, the 20l might work better for you.
Note: The 30l backpack is not as compact as a 20l, so think about how much you want to carry.
Who Should Choose 30L
You should pick the 30l backpack if you love camping or need to pack for a weekend trip. The 30l size is perfect for people who want to bring extra clothes, food, or larger gear. If you need waterproof protection for your sleeping bag or tent, the 30l dry bag is a smart choice. You get more capacity and more flexibility. The 30l backpack is also great for group trips or when you need to carry gear for someone else. If you often find the 20l too small, you will enjoy the extra space in the 30l.
The 30l backpack gives you the freedom to pack what you need for camping, hiking, or any outdoor adventure. You do not have to worry about leaving things behind. You get a waterproof, roomy bag that keeps your gear safe and dry.
Choose the Right Dry Bag Size by Activity
Kayaking and Canoeing
You want to keep your gear dry when you go kayaking or canoeing. The right size dry bag makes a big difference. If you plan a short paddle, you probably need less space. For longer trips, you need more room for extra gear. Both kayaking and canoeing can get your stuff wet, so a waterproof bag is a must.
Day vs. Multi-Day Paddling
For a day on the water, a 20l backpack works well. You can fit your lunch, a towel, sunscreen, and a change of clothes. The 20l gives you enough capacity for your essentials. You can tuck it in your kayak or canoe without taking up too much space. Many paddlers say the 20l is best for kayaking on short trips.
If you plan a multi-day paddling adventure, you need more room. The 30l backpack gives you the right capacity for extra clothes, snacks, and even a small sleeping bag. You can pack a rain jacket, dry shoes, and a first aid kit. The 30l is also easier to organize if you want to bring a camera or electronics. You get more capacity, but the bag feels bulkier. For canoeing, you might have more space, so the 30l fits well.
Tip: Always check your kayak or canoe for storage space before you choose a bag. A 20l backpack is easy to grab and go, but a 30l backpack gives you more options for longer trips.
| Trip Type | Recommended Size | What to Pack |
|---|---|---|
| Day Kayaking | 20l backpack | Towel, lunch, phone, sunscreen, dry shirt |
| Multi-Day Kayaking | 30l backpack | Sleeping bag, clothes, food, first aid, shoes |
| Day Canoeing | 20l backpack | Snacks, water, camera, towel |
| Multi-Day Canoeing | 30l backpack | Tent, sleeping bag, extra gear, rain jacket |
You want to choose the right dry bag size for your paddling style. The 20l is best for short trips. The 30l is better for longer journeys or when you need to carry more gear. Both sizes keep your things waterproof and safe.
Hiking and Backpacking
You love hiking and backpacking. You want to keep your gear dry, no matter the weather. The right size dry bag helps you stay organized and comfortable. You can pick a 20l or a 30l backpack, depending on your trip.
Day Hikes vs. Overnight Trips
For a day hike, you do not need much space. The 20l backpack is perfect. You can pack a jacket, snacks, water, and your phone. The 20l keeps your load light and easy to carry. You can move fast and enjoy the trail. Many hikers say the 20l is best for day trips.
If you plan to camp overnight, you need more capacity. The 30l backpack gives you space for a sleeping bag, extra clothes, and food. You can fit a small tent or a thick jacket. The 30l is best for camping and backpacking trips that last more than one day. You get more room, but the bag feels heavier.
Note: If you want to travel light, stick with the 20l. If you need to bring camping gear, the 30l is your best choice.
| Trip Type | Recommended Size | What to Pack |
|---|---|---|
| Day Hike | 20l backpack | Jacket, snacks, water, phone, map |
| Overnight Hike | 30l backpack | Sleeping bag, tent, food, clothes, flashlight |
You want to choose the right dry bag size for your hiking style. The 20l is best for short hikes. The 30l is best for camping and longer backpacking trips. Both sizes keep your gear waterproof and ready for any weather.
Beach, Pool, and Water Sports
You want to keep your things dry at the beach, pool, or during water sports. The right size dry bag helps you relax and have fun. The 20l backpack is great for a towel, sunscreen, and a change of clothes. You can toss in your phone and wallet, too. The 20l is easy to carry and fits in a beach tote or locker.
If you plan to bring extra gear, like fins, a wetsuit, or snacks for the family, the 30l backpack gives you more capacity. You can pack everything you need for a full day by the water. The 30l is also good if you want to share one bag with friends or family.
Tip: For most water sports, the 20l is enough. If you need to pack for a group or bring bulky gear, the 30l is your best bet.
| Activity | Recommended Size | What to Pack |
|---|---|---|
| Beach Day | 20l backpack | Towel, sunscreen, phone, snacks, book |
| Pool Visit | 20l backpack | Swimsuit, goggles, towel, wallet |
| Water Sports | 20l or 30l backpack | Wetsuit, fins, snacks, dry clothes |
| Family Beach Trip | 30l backpack | Towels, toys, snacks, extra clothes |
You want to choose the right dry bag size for your plans. The 20l is best for solo trips or light packing. The 30l is best for group outings or when you need more space. Both sizes keep your gear waterproof and sand-free.
Travel and Commuting
You might not think about dry bags for travel or commuting, but they can make your daily routine much easier. If you ride your bike to work, take the bus, or travel by plane, you want to keep your things dry and organized. Rain, spills, or even a leaky water bottle can ruin your day. That’s where the 20l and 30l backpacks come in handy.
The 20l backpack is a great choice for your daily commute. You can fit your laptop, a notebook, a lunchbox, and a light jacket. The compact size makes it easy to carry on crowded buses or trains. You can slide it under your seat or tuck it in an overhead bin. If you walk or bike, the 20l keeps your electronics and papers safe from rain.
If you travel for work or take weekend trips, you might need more space. The 30l backpack gives you room for extra clothes, shoes, and even a camera. You can pack for a short business trip or a quick getaway. The 30l is also helpful if you bring gym gear or need to carry a few groceries on your way home.
Here’s a quick table to help you choose the right dry bag size for travel and commuting:
| Activity | Recommended Size | What Fits Inside |
|---|---|---|
| Daily Commute | 20l backpack | Laptop, lunch, notebook, jacket, phone |
| Business Trip | 30l backpack | Clothes, shoes, laptop, toiletries, documents |
| Weekend Getaway | 30l backpack | Outfits, camera, snacks, water bottle, travel gear |
Tip: If you want to keep your work gear dry and organized, the 20l backpack is perfect for daily use. If you need to pack for a trip, the 30l backpack gives you the right capacity.
You can also use a dry bag as your carry-on when you fly. The waterproof material keeps your things safe from spills or rain at the airport. You don’t have to worry about your bag getting wet if you set it down outside. Both the 20l and 30l backpacks are easy to clean, so you can use them again and again.
Family or Group Use
Packing for a family or group trip can feel like a big job. You need to carry towels, snacks, toys, and maybe even a change of clothes for everyone. The right dry bag size makes it much easier to stay organized and keep everything dry.
The 20l backpack works well if you only need to pack for yourself or one other person. You can fit a couple of towels, sunscreen, and snacks. If you have young kids, you might find the 20l too small for all their gear.
The 30l backpack is a better choice for families or groups. You can pack several towels, extra clothes, water bottles, and even some beach toys. The 30l gives you enough space to carry everything in one bag. You don’t have to juggle multiple bags or worry about things getting wet.
Here’s a list of what you might pack for a family beach day with a 30l backpack:
- Four towels
- Snacks and drinks
- Sunscreen and hats
- Extra clothes for kids
- Sand toys and a small ball
If you go kayaking with friends, the 30l backpack lets you share one bag for everyone’s essentials. You can keep your group’s phones, wallets, and snacks dry in one place. The 20l backpack is still useful if each person wants their own bag, but the 30l makes group packing simple.
Note: For family camping or group kayaking trips, the 30l backpack gives you the space and waterproof protection you need. If you travel solo or pack light, the 20l backpack is still a solid choice.
When you choose the right dry bag size for your family or group, you make every trip smoother. You spend less time worrying about wet gear and more time having fun together.
Other Factors When Choosing Dry Bag Size
Comfort and Carry Options
You want your dry bag to feel good when you carry it. The right size makes a big difference. A smaller bag feels lighter on your back or shoulder. You can move easily and stay comfortable. If you pick a larger size, you might notice more weight, especially when the bag is full. Some dry bags have padded straps or handles. These features help you carry the bag for longer trips. You can also find bags with backpack-style straps. These make it easier to walk or hike with your gear. Always check the straps and handles before you choose a bag. You want to feel comfortable, no matter the capacity.
Packing Style and Gear Type
Think about how you like to pack. Do you bring only the basics, or do you pack extra gear? If you travel light, a smaller size works well. You can fit your essentials and keep everything organized. If you need to bring bulky items, you need more capacity. A 30L bag holds a sleeping bag, thick jacket, or even a wetsuit. A 20L bag fits clothes for a weekend trip. You can also use more than one small bag. This helps you spread out the weight and makes it easier to find your things. Smaller bags fit into tight spaces, like a kayak or under a seat. You can grab what you need without digging through a big bag.Tip: Use several small dry bags for better weight balance in your kayak. You can keep your gear safe and easy to reach.
Storage and Budget
You want a bag that fits your storage space and your budget. A smaller size is easier to store at home or in your car. You can tuck it away when you do not need it. A larger bag takes up more room, but gives you more capacity for longer trips. Think about how much gear you need to keep dry. You do not want to buy a bag that is too big or too small.
Here is a quick look at what each size can hold:
| Bag Size | Capacity Description |
|---|---|
| 20L | Suitable for a weekend trip for one person with clothes. |
| 30L | Fits two thick wetsuits or a wetsuit and a poncho/towel, ideal for day trips or a week-long trip for one person. |
You also want to think about price. Smaller bags usually cost less. If you need more waterproof protection, you might pay more for a bigger bag. Choose the size that matches your needs and your wallet. Both 20L and 30L bags give you strong waterproof protection for your adventures.
Dry Bag Size Decision Checklist
Choosing the right dry bag size can feel tricky, but you can make it simple with a quick checklist. Let’s break it down step by step.
Assess Your Gear List
Start by looking at what you usually pack. Lay out your gear on the floor or your bed. Do you see just a few items, or does your pile keep growing? If you only bring the basics—like a towel, water bottle, snacks, and a change of clothes—a 20L dry bag will probably do the job. If you see bigger items like a sleeping bag, tent, or extra shoes, you might need a 30L bag.
Here’s a quick table to help you match your gear to the right size:
| Gear Type | 20L Bag | 30L Bag |
|---|---|---|
| Towel & Clothes | ✅ | ✅ |
| Lunch & Snacks | ✅ | ✅ |
| Sleeping Bag | ✅ | |
| Small Tent | ✅ | |
| Extra Shoes | ✅ |
Tip: If you’re not sure, pack your gear in a pillowcase first. If it fits, it will likely fit in a 20L bag. If not, go bigger!
Consider Trip Duration
Think about how long you’ll be out. For a short day trip, you won’t need much space. A 20L bag keeps things light and easy. For overnight or weekend adventures, you’ll want more room for food, clothes, and maybe even a sleeping bag. That’s when a 30L bag shines.
Ask yourself:
- How many meals do you need to pack?
- Will you need extra clothes for changing weather?
- Are you camping or just out for the day?
If you answer “yes” to extra clothes or camping gear, you’ll want the larger size. If you only need a few things for a few hours, stick with the smaller bag.
Portability Needs
You want your dry bag to be easy to carry and use. Here are some things to look for when thinking about portability:
- Size: Pick a bag that holds your gear but doesn’t feel bulky.
- Features: Look for straps and buckles that make carrying easier.
- Material: Choose tough materials with watertight seams to keep your stuff dry.
- Weight: Go for a lightweight bag if you plan to hike or travel far.
- Accessibility: Make sure you can reach your gear quickly when you need it.
Note: If you plan to hike all day or paddle for hours, a lighter bag with comfy straps will make your trip much more enjoyable.
Take a moment to check these points before you buy. You’ll find the perfect dry bag size for your next adventure!
Real-World Examples
Day Hiker’s Packing List
You want to hit the trail for a day hike. You need to keep your gear dry and easy to carry. A 20L dry bag works great for this kind of trip. You can fit all your essentials without feeling weighed down.
Here’s what you might pack for a day hike:
- Lightweight rain jacket
- Water bottle (1 liter)
- Sandwich or snacks
- Small first aid kit
- Map and compass
- Headlamp or flashlight
- Phone and wallet
- Extra socks
- Microfiber towel
Tip: Roll your clothes and towel to save space. You can fit more in your 20L bag this way.
You can toss this bag in your backpack or carry it on its own. You stay organized and your gear stays dry, even if you get caught in a sudden rain shower.
Kayaker’s Gear Example
You love paddling on the river or lake. You want to keep your gear safe from splashes and waves. For a short paddle, a 20L dry bag is enough. For a longer trip, you might want a 30L bag.
Let’s look at what you can pack for a full day on the water with a 30L dry bag:
| Item | Fits in 30L? |
|---|---|
| Change of clothes | ✅ |
| Lunch and snacks | ✅ |
| Water bottle | ✅ |
| Waterproof camera | ✅ |
| Small towel | ✅ |
| Lightweight shoes | ✅ |
| Rain jacket | ✅ |
| First aid kit | ✅ |
Note: You can split your gear into two 20L bags if you want to balance weight in your kayak.
You can grab what you need quickly. You do not have to worry about wet gear ruining your trip.
Family Beach Trip
You plan a fun day at the beach with your family. You need to pack for yourself and your kids. A 30L dry bag gives you the space you need.
Here’s a sample packing list for a family beach day:
- Four towels
- Swimsuits for everyone
- Sunscreen and hats
- Snacks and juice boxes
- Sand toys and a small ball
- Wet wipes and a change of clothes
Pro Tip: Put wet swimsuits and towels in the dry bag at the end of the day. You keep the rest of your car clean and dry.
You can carry everything in one bag. You do not have to juggle multiple totes or worry about sand getting everywhere. Your family stays happy and your gear stays dry.
Conclusion
You now know the key differences between 20L and 30L dry bags. The 20L works best for day trips and light packers. The 30L fits weekend adventures or bulkier gear. Still not sure? Ask yourself what you usually carry and how long you stay out. Your gear and plans decide the right size. Need help? We make high-quality dry bags for every adventure. Explore our collection and find your perfect fit!
FAQ
How do I know if a 20L or 30L dry bag is big enough for my trip?
Lay out your gear before you pack. If you only see essentials like clothes, snacks, and a towel, a 20L bag works. If you spot a sleeping bag or tent, go for a 30L bag.
Can I use a 30L dry bag for air travel as a carry-on?
Yes, you can! Most airlines accept a 30L dry bag as a carry-on. Always check your airline’s size rules before you fly. The waterproof material keeps your things safe from spills and rain.
Will a 20L dry bag fit inside a backpack?
You can fit a 20L dry bag in most standard backpacks. It works great as a liner to keep your gear dry. Just roll the top tightly for the best seal.
Are dry bags really waterproof?
Yes, dry bags keep your gear dry in rain, splashes, and quick dunks. Make sure you close the roll-top tightly. Don’t fully submerge the bag for long periods.
Can I use a dry bag for electronics?
You can! Dry bags protect phones, cameras, and tablets from water. Use a small pouch inside for extra safety. Always double-check the seal before you head out.
What’s the best way to clean my dry bag?
Rinse your dry bag with fresh water after each trip. Let it air dry with the top open. Avoid harsh soaps or machine washing. This keeps the material strong.
Do dry bags float if they fall in water?
Yes, most dry bags float when sealed and not overloaded. Trap some air inside when you close it. This helps your bag stay on the surface if it falls in.
Can I use more than one dry bag on a trip?
Absolutely! Many people use several smaller dry bags to organize gear. You can separate wet and dry items or share bags with friends. This makes packing and finding things easier.
