Drybag vs waterproof backpack – what suits you best?

Are you standing on the dock with your SUP board and wondering how to keep your valuables dry while paddling? You’re not alone. Choosing between a dry bag and a waterproof backpack can be confusing, especially when there are so many options on the market. As a SUP paddler, you need a reliable solution that will protect your phone, wallet and extra clothes – whether you’re paddling leisurely along the coast or heading out on longer trips.

With over 18 years of experience in water sports, we at Kona Sports know that the right storage can make the difference between a great paddle and a stressful experience where you worry about your belongings. In this guide, we compare drybags vs. waterproof backpacks to help you make the right choice based on your specific needs and paddling habits.

You will learn the basic differences between these two storage options, their pros and cons, and get concrete recommendations for different uses. Whether you are a beginner or an experienced paddler, you will find the information you need to invest in the right equipment from the start.

Table of contents

• Basic differences between drybag and waterproof backpack
• Drybag – advantages and disadvantages for SUP paddling
• Waterproof backpack – advantages and disadvantages in practice
• Areas of use – when should you choose what?
• Capacity and sizes for different needs
• Price aspects and long-term investment
• Our recommendations for Swedish conditions

Basic differences between drybag and waterproof backpack

A drybag is a simple, cylindrical bag made of waterproof material that is closed by rolling up the top and securing with clips or buckles. The design is minimalist and focuses entirely on keeping the contents dry. What makes the drybag unique is its flexibility – when the bag is empty, it takes up minimal space, and you can squeeze out excess air to reduce the volume.

A waterproof backpack combines the functionality of a traditional backpack with waterproof construction. It usually has multiple compartments, a carrying system with padded shoulder straps, and sometimes also hip and sternum straps for better weight distribution. The construction is more complex with waterproof zippers and reinforced seams.

The main difference lies in the area of ​​use. A drybag is designed to be your waterproof storage solution inside another bag or to be carried separately for shorter distances. A waterproof backpack is built to be your primary carrying system for longer hauls and more complex excursions.

Durability also varies. Drybags typically use a single layer of heavy-duty PVC or vinyl, while waterproof backpacks often have multiple layers of material with reinforcements in strategic places. This affects both weight, packability, and longevity.

Drybag – advantages and disadvantages for SUP paddling

The advantages of a drybags for SUP use are many and clear. The biggest advantage is simplicity – there is no complicated mechanism that can break. You roll up the top, attach a clip or buckle, and your things are protected. This simplicity also means that drybags are often more reliable over time compared to complex systems with zippers.

Flexibility is another big advantage. When you are not using the drybag, you can roll it up to a minimal size. While paddling, you can adjust the volume by squeezing out air, making it easier to attach to your SUP board or store in a larger bag.

The cost is also attractive. High-quality dry bags cost significantly less than equivalent waterproof backpacks. For many SUP paddlers who mainly paddle shorter distances near their home port, this is a practical and economical solution.

The disadvantages start to show when you need more comfort or organization. A dry bag lacks ergonomic carrying solutions, making it impractical for longer transports to and from the water. You will also miss the ability to organize your things into different compartments – everything ends up in one big bag where you have to dig to find specific items.

Access to your belongings is limited while paddling. If you need to access something mid-trip, you have to open the entire bag, which can be inconvenient on the water. For paddlers who like to take photos or need access to snacks during longer trips, this can be frustrating.

Waterproof backpack – advantages and disadvantages in practice

A Waterproof backpacks for longer trips offer comfort that is hard to match. With padded shoulder straps and often a hip belt, you can carry heavier loads over longer distances without discomfort. This makes it ideal for paddlers who need to carry a lot of equipment or who have longer walks to their favorite paddling spots.

Organization is another strength. Multiple compartments let you separate wet and dry items, keep electronics protected, and have quick access to essential items. Many models also have external mounts for gear you don't need to keep dry, like extra paddles or pumps.

The versatility makes waterproof backpacks useful even outside of the SUP context. You can use the same backpack for hiking, kayaking, or other outdoor activities, providing better value for money over time.

On the downside, there is the cost. High-quality waterproof backpacks often cost three to four times more than the equivalent drybag. The complexity of the design also means more components that can break – waterproof zippers are particularly sensitive to sand and salt.

The volume and weight when the backpack is empty can also be a disadvantage. Unlike a dry bag that almost disappears when not in use, a waterproof backpack always takes up the same amount of space. For paddlers with limited storage space at home or in the car, this can be problematic.

Areas of use – when should you choose what?

For day trips close to home port where you don't have to carry equipment far, a dry bag is often the optimal choice. It keeps your valuables dry, takes up minimal space on your SUP board, and doesn't cost a fortune. Many experienced paddlers have several dry bags in different sizes to organize their equipment efficiently.

If you are planning longer expeditions or regularly paddle in places that require longer transport, a waterproof backpack becomes more attractive. The comfort during transport and the ability to organize equipment outweigh the higher cost. This is especially true if you combine SUP with camping or other activities.

For paddlers who frequently take photos or need access to equipment during the trip, a waterproof backpack with multiple compartments is often practical. You can keep your camera in an easily accessible compartment and other valuables safely stored in the main compartment.

Swedish weather conditions with their rapid changes also make waterproof backpacks attractive to more serious paddlers. The ability to pack extra layers, rain cover and safety equipment in an organized manner can be crucial for safety.

According to The Swedish Environmental Protection Agency recommends that you have the right safety equipment when you venture out into Swedish waters. A well-organized waterproof backpack makes it easier to follow these recommendations without compromising comfort.

Capacity and sizes for different needs

Drybags are typically available in sizes from 5 to 20 liters for SUP use. A A compact 10-20 litre dry bag is enough for valuables like a phone, wallet, keys and an extra layer of clothes. For longer day trips, a larger model may be more suitable, with space for lunch, extra water and a more extensive spare set of clothes.

Waterproof backpacks for SUP use usually range between 20-40 liters. A A 25-liter waterproof backpack is often the perfect balance for day trips – big enough for all the necessary gear but not so big that it becomes unwieldy on the SUP board.

For longer expeditions or family trips, 30-40 liter models may be necessary. Remember that bigger is not always better when it comes to SUP – an overloaded board negatively affects stability and paddling characteristics.

When choosing your size, keep in mind that wet clothes take up more space than dry ones. Also, consider that you will need extra space for safety equipment such as a life jacket and possibly spare equipment, which The Swedish Lifesaving Society recommends for safe paddling.

Price aspects and long-term investment

The price difference between drybags and waterproof backpacks is significant. A quality drybag usually costs between 200-500 SEK depending on size and material. Waterproof backpacks of equivalent quality are usually between 800-2000 SEK.

But the price per use can be different. If you paddle regularly and need the comfort and organization that a waterproof backpack offers, the higher initial cost may be justified. A well-made waterproof backpack can last for many years with proper care.

For seasonal paddlers or those who primarily paddle shorter trips close to home port, drybags are often the most economical solution. You can also purchase multiple smaller drybags for the same cost as a waterproof backpack, allowing flexibility in packing strategies.

Remember to invest in quality no matter which option you choose. A cheap dry bag that leaks the first season will cost more in the long run than a more expensive model that lasts for years. The same principle applies to waterproof backpacks – quality zippers and materials are crucial to longevity.

Our recommendations for Swedish conditions

For most SUP paddlers in Sweden, we recommend starting with a A high-quality dry bag in the 10-15 liter size for basic needs. This covers valuables and an extra layer for most day trips. As you develop your paddling habits, you can then evaluate whether a waterproof backpack would add value.

If you know you will be paddling regularly, often carrying equipment for long distances, or planning expedition-style paddling, invest in one right away. Quality waterproof backpack . 25-30 liters is usually the perfect size for Swedish conditions where weather can change quickly.

For families with children, we recommend a waterproof backpack. Families with children often need more equipment, and organization becomes crucial when you need to find snacks, extra clothes or toys quickly. The safety aspect is also more important when you are responsible for the well-being of others on the water.

Whatever you choose, be sure to test the storage solution before first real use. Fill it with newspaper and place it in the water at home in the bathtub. Better to discover problems at home than out on the water with your valuables.

Learn too basic SUP safety and what equipment is required according to Swedish regulations. The Swedish Transport Agency has specific requirements for water sports activities that you should be aware of before you venture out into our Swedish waters.

Summary

The choice between a drybag and a waterproof backpack is primarily about your specific needs and paddling habits. A drybag is the economical and simple solution that works great for most day trips and paddlers who prioritize simplicity and minimal packing. The Scandinavian design philosophy that Kona Sports stands for – functionality without unnecessary complexity – aligns well with the benefits of a drybag.

A waterproof backpack is the right investment for those who paddle regularly, need to organize a lot of equipment, or value comfort during transport. It represents a long-term solution that can accompany you through many years of paddling adventures and development as a SUP practitioner.

The main deciding factors are: how often you paddle, how far you need to carry gear, how much organization you need and your budget. Remember that both options can be part of your SUP equipment – ​​many experienced paddlers use drybags for shorter trips and waterproof backpacks for more ambitious adventures.

Whatever you choose, invest in quality from the start. As we say at Kona Sports: "Stand up people. Stand up life." – the right equipment that works over time allows you to focus on what really matters: the experience on the water and the joy of paddling.

Frequently asked questions about drybag vs waterproof backpack

Are drybags really 100% waterproof?

Quality dry bags are designed to be waterproof under normal use, but no storage solution is foolproof. To achieve maximum waterproofness, you must follow the manufacturer's instructions for sealing carefully. Roll the top at least 3-4 times and make sure the buckle or clip is secure.

Avoid overfilling the bag as this may affect its ability to seal properly. For extra security, double-pack sensitive electronics in smaller drybags or waterproof bags inside the main bag.

Can I use a waterproof backpack for activities other than SUP?

Absolutely, and that's one of the biggest benefits of waterproof backpacks. They work great for hiking in rainy weather, kayaking, fishing, and camping. Many paddlers appreciate the versatility because the same backpack can be used for different outdoor activities.

This makes it a more cost-effective investment compared to sport-specific equipment. Choose a model with a good carrying system and you will find that it will become your favorite backpack for many outdoor activities.

What size is best for day trips?

For most day trips, 10-20 liters is a good size, depending on the time of year and how much extra gear you need. In the summer, 10-15 liters is often enough for valuables, lunch, and a thin extra layer. During winter or uncertain weather, you may need 20-25 liters for warmer spare clothing and safety equipment.

Remember that bigger is not always better – an overloaded SUP board will be unstable and difficult to paddle. Start with a smaller size and upgrade as needed as you learn what you actually need to bring with you.

How long does a drybag last compared to a waterproof backpack?

Lifespan depends primarily on quality and use. A well-made dry bag made of heavy-duty PVC or vinyl can last 5-10 years with normal use. Waterproof backpacks have more components that can break, but the best models can last as long or longer with proper care.

The most important thing is to avoid sharp objects, clean after use in salt water and store dry. Waterproof zippers are the most common source of failure on backpacks, so choose models with quality YKK zippers or similar for the best durability.

What do Swedish authorities say about safety equipment for SUP?

According to the Swedish Transport Agency, SUP is classified as a recreational boat, which means that you must have life jacket on board for each person. During the period May 1 to September 30, children under 13 years of age are required to wear a life jacket. Outside this period, life jackets are recommended for everyone.

You should also have a whistle for emergency signals and consider a safety line for more challenging conditions. The Outdoor Promotion Association also recommends informing someone of your planned route and estimated return time. Your storage solution should have space for this safety equipment without restricting your mobility on the board.

Can I combine a drybag and a waterproof backpack?

Yes, many experienced paddlers do exactly this and it’s a smart strategy. You can use a waterproof backpack as your main storage and transport, with smaller drybags inside to organize different types of gear. For example, you can keep electronics in one small drybag, extra clothes in another, and food in a third.

This gives you the flexibility to bring only what you need on shorter trips while still having the option of more substantial packs for longer adventures. It's also a cost-effective way to gradually build up your storage equipment.

How do cold and heat affect my storage options?

Both drybags and waterproof backpacks are affected by temperature changes. In cold weather, materials become stiffer and zippers can become sluggish – lightly grease them with special waterproof zipper grease. In extreme heat, pressure can build up inside the storage, so avoid leaving them in direct sunlight when they are fully loaded.

PVC material can become soft and more susceptible to punctures at high temperatures. For winter use, choose material that remains flexible in sub-zero temperatures. Always store your equipment in a cool, dry place when not in use to maximize its lifespan.