A waterproof backpack is not a hiking backpack treated with a water-repellent coating. It is a bag whose fabric, welded seams, and closure are designed to keep water out, whether you are caught in a prolonged downpour, on a dock, cycling in traffic, or by the water. The word waterproof indicates a higher level of protection: electronics, documents, and a change of clothes remain usable. Discover the best waterproof backpacks in 2026.
A few good practices can make all the difference when it comes to getting the most out of your gear every day. These tips for organizing the inside of a waterproof backpack help you make the most of the space and distribute the contents more evenly. It is also useful to know how to care for a backpack and extend its lifespan to preserve its materials and performance. Finally, for a combination of function and style, these 10 stylish looks with a backpack offer a range of ideas for inspiration.
The practical benefits of a truly waterproof backpack
The first benefit is protection for electronics. Phones, power banks, cameras and, for many urban users, laptops can’t withstand prolonged dampness or direct splashes. A waterproof backpack prevents the classic scenario of a damp bag bottom after twenty minutes in the rain. The second benefit is protection for clothes and fabric gear. A dry jacket, a change of clothes, and a towel stay usable after paddleboarding, a hike in a thunderstorm, or a motorcycle ride. The third benefit is document protection: papers, maps, tickets, and first-aid kits won’t get warped.
There’s a fourth, less obvious benefit: dust, sand, and mud stay out when the rating includes a high first digit (IP6x). On a beach, a trailhead parking lot, or a path after rain, this helps protect the zippers and the bag’s interior. The fifth benefit is financial. Replacing a phone or camera costs more than buying a bag designed for wet conditions. The sixth is practical: carrying one bag on your back leaves your hands free on a dock, quay, or technical trail. Waterproofing doesn’t replace organization; it makes it useful in bad weather. For trips to the sea or other bodies of water, the guide to the best backpacks for the sea explains which styles stand up to sea spray.
What the IP rating really tells you about a waterproof backpack
The IP (Ingress Protection) rating, defined by the IEC 60529 standard, describes two things: dust (the first digit) and water (the second digit, often shown as IPX when dust hasn’t been tested). A water-repellent treatment on standard fabric may hold up in a brief shower. It won’t withstand continuous spray, a fall into a ditch, or a kayaking session. An IPX6-rated model resists powerful water jets. An IP67-rated model is dust-tight and protected against temporary immersion at a depth of one meter for thirty minutes. An IP68-rated model goes further, according to the protocol declared by the manufacturer. In real-world conditions, you’ll notice the difference after an hour in the rain, not in a store.
The global market for dry bags and waterproof bags is estimated at around $1.3 to $1.8 billion in 2025, with annual growth of approximately 6 to 7% through the early 2030s, driven by outdoor activities, travel, and rainy urban commutes. Backpack-style designs are growing faster than simple tube bags because carrying comfort matters as much as protection. If you’re still unsure, the backpacks and waterproof bags pages let you compare capacities and ratings before you buy.
The closure matters just as much as the fabric. Roll the top closure down three to four times and clip it shut to seal the bag like a dry barrel. A technical waterproof zipper makes access quicker, provided the slider and tape are genuinely designed for immersion or water spray. A merely water-resistant zipper protects against light rain, not immersion. Before buying, check the rating for the main compartment and the secondary pockets. An unprotected zippered opening undermines some of the bag’s promise. For mixed city and outdoor use, the versatile everyday bag selection brings together sizes suited to both.
Waterproof backpacks: which model should you choose for the city, cycling, hiking, and water sports?
A waterproof backpack should effectively protect your belongings from water while offering a capacity and level of comfort suited to your activity. For city commutes, a 15- to 25-liter model is generally enough to carry a laptop, lunch, a water bottle, and a jacket. Rain protection is essential, especially for documents and electronic devices.
For cycling, mountain biking, or gravel riding, a waterproof backpack should also stay stable on the move. Adjustable shoulder straps, a chest strap, and an ergonomic back panel help limit movement. Spray from the wheels calls for suitable protection, particularly if you regularly ride in the rain.
For hiking, a 30- to 45-liter waterproof backpack offers more room for clothes, food, and gear. Comfort then becomes a priority, especially when carrying the bag for several hours. For kayaking, paddleboarding, and water sports, choose a model designed to withstand significant exposure to water and, if necessary, temporary immersion.
Motorcycle travel also comes with specific demands. Water spray, speed, and friction call for durable materials and a reliable closure. Our motorcycle bag collection features styles suited to these uses.
For longer trips, the expedition and travel collection offers larger capacities. You can also consult our guide to the best waterproof travel bags to compare different carrying options.
Finally, activities by the sea call for particular attention to materials and closures. Our beach and water sports collection features models suited to wet environments.
What capacity, closure, and material should you look for in a waterproof backpack?
Choosing a waterproof backpack comes down to three key factors: capacity, closure system, and materials. These determine how well the contents are protected, how comfortable the bag is to carry, and how well it holds up over time.
Choose a capacity that matches how you’ll actually use the bag. A bag that’s too small may end up overpacked, preventing the closure from working properly. Conversely, a bag that’s too large becomes cumbersome and less stable on the move.
| Capacity | Primary use | Protection to look for based on exposure | Suitable closure | Typical contents |
|---|---|---|---|---|
| 12 L or less | City, short outings, light exercise | IP65 to IP67 | Roll-top or waterproof zipper | Phone, keys, windbreaker |
| 15 to 25 L | Office, cycling, day hikes | IP66 to IP67 | Roll-top or technical zipper | Laptop, lunch, clothes |
| 30 to 45 L | Weekend trips, hiking, water sports | IP66 to IP67, or IP68 if needed | Roll-top and compression straps | Clothes, shoes, sports gear |
| 60 L or more | Expeditions, extended travel | Rating suited to the risk of rain or immersion | Roll-top and support system | Bulky gear, belongings for several days |
For short trips, waterproof bags of 12 liters or less let you carry the essentials without being weighed down.
Our 15- to 25-liter waterproof backpacks are an excellent compromise for everyday use and sports activities.
For travel and hikes that call for more gear, explore our 30- to 45-liter models. Our 60-liter bags and larger meet the needs of expeditions and bulky loads.
The closure system directly affects how waterproof the bag is. With a roll-top closure, you roll the top of the bag down several times before fastening the buckles. When used correctly, this mechanism effectively limits water ingress. A waterproof zipper makes it easier to access the contents but requires regular maintenance.
The material determines the bag’s durability. Technical models use materials such as high-tenacity polyester coated with PVC, coated nylon, or TPU-based materials. Welded seams help limit points of water entry, unlike unprotected traditional stitching.
Empty weight is also worth considering. A 20-liter waterproof backpack can weigh between 700 g and 1.2 kg, depending on its construction. Higher-capacity models generally need a more developed carrying system to remain comfortable.
Our waterproof tubes are a complementary option for carrying gear in a kayak or vehicle.
To compare different models, explore our complete collection of waterproof backpacks.
How to care for a waterproof backpack and preserve its water resistance
A waterproof backpack needs regular care to maintain its protective properties and extend its lifespan. Even the most durable materials can deteriorate when exposed to salt, sand, friction, or moisture for long periods.
After a trip to the sea, a rainy commute, or a water sports activity, start by rinsing the bag with fresh water. This removes salt residue, sand, and dirt that have accumulated on the materials and closures.
Then leave the bag open to dry in a well-ventilated place, out of direct sunlight. Avoid radiators, tumble dryers, and sources of intense heat, which may damage the waterproof coatings.
Use a soft cloth and clean water to wipe down the surfaces. Harsh chemicals can damage some coatings and weaken the construction.
Pay particular attention to the closures. Waterproof zippers must be kept clean to work properly. The buckles and fasteners on a roll-top closure should also be checked regularly.
Before each major outing, inspect the following:
- The bottom and corners of the bag, which are often exposed to friction.
- The welds and panel joints.
- That the closures and buckles work properly.
- The shoulder strap attachments and compression straps.
- The materials for cuts, cracks, or peeling.
In winter, some materials become stiffer at low temperatures. Avoid forcing the closures and follow the manufacturer’s usage guidelines.
High-capacity travel bags require the same precautions. Motorcycle models also call for checking the attachment points and areas exposed to friction, as explained in our guide to waterproof motorcycle travel bags.
Simple care after the most demanding outings helps preserve your gear’s water resistance and durability.
How to choose the best waterproof backpack for your needs
To choose the best waterproof backpack, start by identifying the conditions in which you’ll actually use it. A bag designed for the office doesn’t need the same features as one used for kayaking or hiking in the rain.
For city commutes, choose a 15- to 25-liter waterproof backpack with a comfortable back panel, adjustable shoulder straps, and easy access to your belongings. Protection from water jets may be sufficient for rainy commutes.
For cycling and sports activities, look for a model with a good support system. A chest strap and adjustable shoulder straps limit movement during exercise. An IP66 rating may be suitable for heavy splashes, provided the bag is designed and tested for that level of protection.
For water sports, choose a bag certified IP67 when there is a real risk of temporary immersion. A properly used roll-top closure and welded seams are important features. Be sure to check the exact terms of the certification.
For travel and hiking, focus on capacity, carrying comfort, and abrasion resistance. Models from 30 to 45 liters can carry more gear, but need a back panel and shoulder straps suited to the load.
Your choice of materials may also guide your decision. Models in the Cordura® collection are designed with a focus on wear resistance. Our comparison of the best Cordura backpacks explores this factor in more detail.
For travelers looking to save space, a foldable backpack can serve as a second bag. Backpack suitcases offer an alternative for trips that require more organization.
Athletes can also explore our sports and performance collection and our guide to the best men’s sports bags.
For specific needs, such as float tube fishing, our comparison of float tube transport bags presents other options.
Finally, consider accessories. A waterproof phone pouch protects small items without requiring you to keep opening the main compartment.
At Zulupack, we design bags for everyday commutes, sports activities, and wet environments. Depending on the model, their construction offers resistance to splashes or protection against temporary immersion.
Discover our best sellers to compare the available capacities and features, then choose a waterproof backpack suited to your activity, gear, and level of exposure to water.
Explore waterproof backpacks and choose the right capacity for your needs
Best Waterproof Backpacks
Zulupack - Best Waterproof Backpacks
The TRITON 25 Cordura® is a 25-liter waterproof backpack with an IP67 rating, combining the technical durability of Cordura® 500D with a clean textile look that feels right at home in the city. Designed for urban cycling, triathlon, trail running, or carrying electronic equipment, it remains stable and comfortable even when fully loaded.
Key features:
- Capacity: 25 liters
- Weight: 1,070 g
- Waterproof rating: IP67 (submersible for up to 30 minutes)
- Material: 500D Cordura® nylon, TPU + Kiss Coating
- Construction: High-frequency welded (no exposed seams)
- Closure: Roll-top (tubular or side-closure option)
- Back and shoulder straps: Ergonomically padded back panel, padded shoulder straps, chest strap, and removable waist belt
- Shoulder straps detach at the bottom for tubular mode
- Built-in hydration bladder compartment between the back panel and the bag
- RCT buckle compatible with Phone Kit
- Laptop: up to 15 inches (in a sleeve)
- Colors: Black, White
- Warranty: 2 years
Benefits:
- Completely waterproof without a plasticky look—perfect for the office or active pursuits
- Exceptional stability thanks to its multi-point carrying system
- Hydration bladder compartment that doesn't bulge against your back
- Superior abrasion and UV resistance thanks to Cordura®
- Easily converts to a tubular bag for kayaking, bike racks, or airplane cabins
Ideal for anyone looking for a discreet, ultra-durable waterproof backpack that feels just as at home in the city as it does in extreme conditions.
The INDY 20 Cordura® is a 20-liter waterproof backpack with an IP67 rating, designed for pure versatility. Its self-supporting tubular structure and Cordura® textile finish make it an elegant companion in the city and a capable one on the water or while traveling.
Key features:
- Capacity: 20 liters
- Weight: 570 g
- Waterproof rating: IP67 (submersible for up to 30 minutes)
- Material: 500D Cordura® nylon + TPU
- Construction: High-frequency welded (no exposed seams)
- Closure: Roll-top (tubular or side-closure option)
- Removable shoulder straps + two reinforced side handles
- Adjustable chest strap
- Interior zip pocket + front bungee cord
- Laptop: up to 15 inches (in a sleeve)
- Colors: White/Fluo Green, White/Camel
- Warranty: 2 years
Benefits:
- Extremely lightweight yet highly durable
- Three carrying modes (backpack, hand-carry, tubular) in seconds
- Stands upright even when empty
- Discreet textile look, unlike the classic aesthetic of waterproof bags
- Perfect for everyday use, paddleboarding, kayaking, or a 48-hour city break
Ideal for users who want one versatile, stylish, completely waterproof bag without compromising on weight.
The INDY MINI 12 Cordura® is a 12-liter mini waterproof backpack with an IP67 rating, ultra-compact and ultra-lightweight. It packs all the technical features of the INDY range into a size designed for everyday essentials and trips on the water.
Key features:
- Capacity: 12 liters
- Weight: 470 g
- Waterproof rating: IP67 (submersible for up to 30 minutes)
- Material: 500D Cordura® nylon + TPU Kiss Coating
- Construction: High-frequency welded (no exposed seams)
- Closure: Roll-top
- Removable shoulder straps
- Rear anti-theft zip pocket that sits flat against your back
- Front bungee cord
- Colors: Black, White
- Warranty: 2 years
Benefits:
- Ultra-compact size that goes anywhere
- Anti-theft pocket, ideal for your phone, keys, and card
- Removable shoulder straps for hand-carrying or attaching to a paddleboard
- Clean, elegant textile finish
- Complete protection for short outings, the beach, or commuting
Ideal for anyone looking for a discreet, lightweight mini waterproof bag that's durable enough to protect everyday essentials.
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FAQ
What's the difference between a water-resistant bag and a waterproof backpack?
A bag described as water-resistant or water-repellent often has a surface treatment. Water beads off at first, but the fabric eventually becomes saturated, water seeps through the seams, and the bottom of the bag gets damp. A waterproof backpack uses coated or welded fabric, sealed joins, and a closure designed to withstand splashes or immersion. The IP rating indicates this level of protection. For a brief shower in the city, a good water-resistant bag may be enough. For cycling through spray, kayaking, being on a dock, or hiking for several hours, fully waterproof construction is what matters. Always check whether the rating applies to the entire bag or just the main compartment.
Which IP rating should I look for in the rain, on a bike, or in a kayak?
For city rain and moderate splashes, IPX5 or IPX6 is sufficient if the closure is properly secured. For cycling through spray kicked up by the wheels, IPX6 is a reasonable minimum. For kayaking, paddleboarding, a possible fall into the water, or a bag sitting in the bottom of a boat, IP67 with the roll-top closed with several rolls is the rating suited to brief immersion. IP68 is intended for longer immersion under conditions specified by the manufacturer. The dust rating (6) also keeps out sand and particles. The rating doesn't replace proper use of the closure.
What size waterproof backpack do I need for a day, a weekend, or a trip?
Twelve liters is enough for the essentials on a short outing. Fifteen to twenty-five liters is suitable for a day in the city, on a bike, or doing sports, with room for an extra layer and a meal. Thirty to forty-five liters works for a weekend or a fully loaded hike. Sixty liters or more is for travel, long-distance motorcycle trips, and bulky gear. The right capacity is one you can close without forcing it and comfortably carry for several hours. An oversized bag that's half-empty deforms and is more tiring to carry than one that's the right size. Start with what you'll actually pack, weigh it if needed, then add a little extra room.
Is a roll-top closure more reliable than a waterproof zipper?
Rolled three to four times and clipped shut, a roll-top is the most reliable closure for immersion because it creates a continuous barrier. A technical waterproof zipper is quicker for everyday use and works very well against splashes and rain, provided the slider, zipper tape, and end stop are all up to the same standard. A water-repellent zipper is not the same as a waterproof zipper. Many users choose both: a roll-top for water and a zipper for frequent access. In all cases, a closure that isn't properly fastened negates the stated rating. Practice closing it before a long outing.
How do I care for a waterproof backpack after exposure to seawater or mud?
Rinse the fabric, straps, buckles, and zipper with fresh water as soon as you finish your outing. Leave the bag open until it is completely dry, away from harsh sunlight and radiators. Don't use strong detergents or solvents. Salt and sand wear down sliders faster than light rain does. Check clips and seams or welds regularly. Store the bag clean and dry, without compressing it under a pile of gear for months. Simple care helps preserve both its waterproofing and the appearance of the fabric. After a season of intensive use, inspect areas subject to friction to prevent an unexpected leak.
Do I need a rain cover in addition to a waterproof backpack?
If the bag's shell and closure are genuinely waterproof, a cover won't add protection to the main compartment. It can still help protect a textile harness that absorbs water or let you set the bag down in mud without getting the back panel dirty. For a conventional hiking backpack that's only water-resistant, a cover is still useful, with one limitation: the bottom of the bag and straps remain exposed, and wind often shifts the cover. If you switch between city, cycling, and water activities, investing in a backpack that's waterproof by construction means you don't have to rely on a cover, liner, and several extra bags. You may still want to keep a small waterproof pouch handy for your phone.
