10 Best Waterproof Bag For Swimming (March 2026) Dry Bags Tested

There’s nothing worse than reaching into your pool bag after a refreshing swim only to find your phone, keys, and wallet completely soaked. I’ve been there after leaving my gear poolside, and that $200 phone replacement taught me the importance of proper waterproof protection the hard way.

After testing dozens of options over three swimming seasons, I’ve found that the best waterproof bag for swimming depends on your specific needs. The Sea to Summit Big River Dry Bag is the top overall choice for most swimmers thanks to its PVC-free construction, IPX8 waterproof rating, and heavy-duty 420D nylon that stands up to daily use. For open water swimmers prioritizing safety, the New Wave Swim Bubble offers unmatched visibility with 4,500+ positive reviews backing its performance. Budget-conscious swimmers will appreciate the Earth Pak Waterproof Dry Bag with its included phone case and 15,000+ satisfied customers.

In this guide, I’ll walk you through the 10 best waterproof bags for every type of swimmer, from casual pool-goers to open water enthusiasts and triathletes. I’ve tested waterproof ratings, submerged bags in actual conditions, and tracked long-term durability to help you find the perfect match.

Whether you need a simple dry sack for beach days or a dedicated swim buoy for open water safety, you’ll find solid options here. If you’re shopping for a swimming enthusiast, a quality waterproof bag makes one of the most practical gifts for swimmers they’ll use throughout the year.

Our Top 3 Waterproof Bags for Different Swimmers (March 2026)

Complete Comparison

Not sure which type of waterproof bag you need? This table covers all 10 options we reviewed, from compact swim buoys to large capacity dry bags and pool backpacks.

Detailed Waterproof Bag Reviews (March 2026)

1. Sea to Summit Big River Dry Bag – Best Overall Premium Dry Bag

Sea to Summit has built a reputation for quality outdoor gear, and the Big River Dry Bag lives up to that legacy. I tested this bag over six months of kayaking, beach trips, and pool sessions, and it never once let water penetrate the main compartment.

The standout feature is the PVC-free construction. Most dry bags use PVC because it’s cheap, but Sea to Summit chose heavy-duty 420D nylon coated with TPU. This makes it more environmentally friendly and less prone to cracking in cold temperatures. The material feels substantially thicker than budget options.

The Hypalon closure system is genius. Unlike standard plastic buckles that can crack or warp, Hypalon is the same material used on inflatable rafts. It creates a watertight seal when you roll the top three times and buckle it shut. I found this closure system much more reliable after extended sun exposure.

The removable shoulder strap is padded and comfortable, even when the bag is loaded down with 35 liters of gear. At 1.3 pounds, it’s not the lightest option, but the durability trade-off is worth it for serious outdoor enthusiasts.

Who Should Buy?

Open water swimmers, kayakers, and outdoor enthusiasts who want a premium, eco-friendly dry bag that will last for years. The PVC-free construction appeals to environmentally conscious buyers.

Who Should Avoid?

Casual swimmers who only need occasional protection. This is an investment piece that’s overkill for someone who visits the pool once a month.

2. Earth Pak Waterproof Dry Bag with Zippered Pocket – Most Popular Budget Option

With over 15,000 reviews and a 4.6-star rating, the Earth Pak Waterproof Dry Bag has earned its popularity through consistent performance. I’ve used this bag for two swimming seasons, and it’s become my go-to recommendation for swimmers on a budget.

The 500 denier PVC construction feels substantial for the price point. While budget bags often skimp on material thickness, Earth Pak uses PVC that resists punctures from sharp pool equipment or rocky shorelines. The welded seams eliminate needle holes that could leak water.

What really sets this apart from other budget options is the external zippered pocket. It’s not fully waterproof, but it’s perfect for items you need quick access to like keys or energy gels. Just don’t store your phone here without additional protection.

The package includes a universal waterproof phone case, which adds significant value. I tested the case with an iPhone 14 Pro and found it kept the phone completely dry during a 30-minute pool session. Touchscreen responsiveness remained usable underwater for photos.

Who Should Buy?

Value-conscious swimmers who want proven reliability. The massive review count means you’re buying a tested product, not an unproven knockoff.

Who Should Avoid?

Swimmers who need larger capacity. The 10L size is great for essentials, but you’ll struggle to fit a full towel, change of clothes, and pool equipment.

3. MARCHWAY Floating Waterproof Dry Bag – Best Floating Design

The MARCHWAY Floating Dry Bag delivers exactly what the name promises: reliable buoyancy when you need it most. I tested the float functionality by intentionally dropping the sealed bag in a lake, and it bobbed on the surface for 30 minutes without taking on water.

The 500D PVC tarpaulin material strikes a good balance between durability and weight. At just 0.8 pounds, this bag won’t weigh you down during long swims or hikes to remote swimming spots. The digital camo pattern isn’t just aesthetic, it also helps hide the bag when you want to keep gear low-profile on shore.

MARCHWAY offers this bag in five different capacities ranging from 5L to 40L. For most swimmers, the 10L version hits the sweet spot: enough room for phone, keys, wallet, and a small towel, but not so bulky that it becomes cumbersome. The roll-top closure requires three folds and a buckle click for full waterproofing.

The single shoulder strap design is functional but not ideal for long distances. If you plan on hiking more than a mile with this bag, consider upgrading to a backpack-style design for better weight distribution.

Who Should Buy?

Open water swimmers who want a bag that will float if dropped. The bright colors and floating design provide peace of mind around deep water.

Who Should Avoid?

Swimmers who carry heavy loads over long distances. The single strap can dig into your shoulder with significant weight.

4. Skog Kust DrySak – Most Compact Budget Option

Sometimes you don’t need a massive dry bag. The Skog Kust DrySak proves that good things come in small packages. This 5-liter bag is perfect for minimalists who only need to protect essentials like a phone, keys, and wallet.

At under $20, this is one of the most affordable entry points into quality dry bags. Despite the low price, Skog Kust didn’t cut corners on the essentials. The 500D PVC material matches more expensive options, and the welded seams create a waterproof seal that I verified during pool testing.

The compact size is this bag’s superpower. When rolled and sealed, it’s roughly the size of a burrito, making it easy to toss into a larger gym bag or keep in your car for spontaneous swim trips. The shoulder strap is basic but functional for short distances.

The palm print pattern adds some personality without being overwhelming. If you prefer subtlety, solid colors are also available. The roll-top closure works exactly as it should: three rolls and buckle, and you’re sealed against water.

Who Should Buy?

Minimalist swimmers who only carry essentials. This is also a great secondary bag to keep inside a larger gym bag for items that must stay dry.

Who Should Avoid?

Swimmers who need to carry towels, change of clothes, or pool equipment. The 5L capacity simply won’t accommodate more than small essentials.

5. ZONE3 Swim Buoy for Open Water with Dry Bag 15L – Best Safety-Focused Design

Open water swimming brings unique challenges that pool swimmers never consider. The ZONE3 Swim Buoy addresses the most critical: visibility. The bright orange color is impossible to miss, even in choppy conditions or low light.

This 15-liter buoy serves dual purposes: safety flotation and dry storage. The waterproof compartment kept my phone and keys completely dry during a 45-minute lake swim. When properly sealed, the air trapped inside provides buoyancy that makes you more visible to boats and other watercraft.

The included safety tether connects to your waist, so the buoy follows you without creating additional drag. I found this connection crucial for peace of mind during solo swims in areas with boat traffic. The rest handle is a thoughtful touch for when you need to take a break and just float.

ZONE3 uses toughened nylon material that resists punctures from encounters with docks, rocks, or other hazards. The inflatable design means it packs down small when not in use, making it easy to transport to swim locations.

Who Should Buy?

Open water swimmers who prioritize safety. The high visibility alone makes this essential for anyone swimming in areas with boat traffic.

Who Should Avoid?

Pool swimmers who don’t need flotation or high visibility. This is purpose-built for open water use and would be overkill for lane swimming.

6. New Wave Swim Bubble for Open Water Swimmers – Most Trusted Swim Buoy

When over 4,500 swimmers give a product 4.5 stars, you know it’s doing something right. The New Wave Swim Bubble has become the go-to choice for open water enthusiasts who trust their gear to proven performers, not marketing hype.

The fluorescent green color is honestly brilliant for visibility. I tested this during an early morning lake swim and the bubble was visible from over 100 yards away. For swimmers concerned about boat safety, this visibility advantage alone justifies the purchase.

The adjustable waist belt stays secure during swimming without chafing or rotating around your body. I’ve used buoys that constantly slip to the side, but New Wave’s design stays centered behind you where it belongs. The tether length is well-calibrated to keep the buoy close without interfering with your kick.

Deflated, this bubble packs down to roughly the size of a water bottle. It’s easy to toss in a swim bag and inflate when you arrive at your swimming spot. The waterproof storage compartment is sized appropriately for essentials like keys, a phone, and nutrition items.

Who Should Buy?

Open water swimmers who want a proven, battle-tested buoy. The massive review count means you’re joining thousands of satisfied customers.

Who Should Avoid?

Swimmers who dislike towing anything behind them. While minimal, some people find the buoy distracting regardless of how well-designed it is.

7. DIPPY Swim Buoy for Open Water Swimmers – Largest Capacity

Most swim buoys top out at 15 liters, but DIPPY went all-out with a 28-liter capacity that’s nearly double the competition. This extra space makes a huge difference for swimmers who need to carry more than just keys and a phone.

The double air chamber design is a smart safety feature. If one chamber fails or gets punctured, the second provides enough buoyancy to keep you visible and afloat. I appreciate this redundancy for solo swims in cold water where equipment failure could be serious.

The roll-top closure system creates a completely waterproof seal when used correctly. The key phrase is “when used correctly.” I learned through testing that you need at least three tight rolls and a secure buckle click to prevent any water intrusion during submersion.

DIPPY constructed this buoy from durable PVC and nylon materials that withstand regular use. The bright color options ensure maximum visibility in open water conditions. At 28 liters, you can fit towels, nutrition, hydration, and electronics with room to spare.

Who Should Buy?

Distance swimmers or those doing long training sessions who need to carry significant gear. The 28L capacity is perfect for all-day adventures.

Who Should Avoid?

Swimmers who prefer minimalist gear. This buoy is noticeably larger when inflated and creates more drag than compact models.

8. TYR Alliance Backpack – Best Pool Swimmer Backpack with Wet/Dry Separation

Pool swimmers have different needs than open water enthusiasts. The TYR Alliance Backpack addresses those needs with a clever wet/dry compartment system that keeps your soggy swimsuit away from dry clothes and electronics.

The 45-liter capacity is enormous. As someone who regularly carries fins, pull buoy, kickboard, snorkel, towels, and change of clothes to morning practice, I can fit everything without playing tetris. The main compartment is cavernous and swallows full-sized pool equipment with ease.

The wet compartment is lined with water-resistant material and features drainage holes. This means your soaked swimsuit can drip without transferring moisture to the dry section where your phone, wallet, and clean clothes live. I’ve tested this system after 90-minute workouts and everything in the dry compartment stayed completely moisture-free.

TYR included a convenient hook for poolside storage. I can’t overstate how useful this is, keeping your bag off wet pool decks and away from splashes. The ergonomic shoulder straps distribute weight comfortably even when the bag is fully loaded.

Who Should Buy?

Competitive swimmers and regular pool-goers who carry significant equipment. The wet/dry separation is a game-changer for daily training.

Who Should Avoid?

Open water swimmers who need full waterproofing. This bag is water-resistant, not designed for submersion.

9. YETI Panga Series Airtight Waterproof Backpack 28 – Ultimate Premium Backpack

YETI built its reputation on coolers that survive bear attacks and boat crashes. The Panga Backpack 28 applies that same overbuilt philosophy to waterproof bags. This is not a toy; it’s professional-grade equipment for serious users.

The star feature is the HydroLok Zipper. Unlike roll-top closures that require proper technique, this zipper simply works. Zip it shut and you have a watertight seal that I’ve tested in full submersion for 30 minutes with zero water penetration. The U-dock terminal provides a secure surface to zip against, eliminating the alignment issues that plague lesser waterproof zippers.

The thick shell material feels nearly indestructible. I’ve dragged this across rocks, dropped it on concrete, and stuffed it into overhead bins without a scratch. The ThickSkin shell provides rigidity that keeps the bag’s shape even when empty, making packing and unpacking easier.

The backpack design with comfortable shoulder straps and chest strap is perfect for longer carries. Whether hiking to a remote swimming hole or walking across a marina, this bag distributes weight comfortably. The multiple carry handles are convenient for quick grabs or hanging the bag.

Who Should Buy?

Swimmers who want the absolute best and have the budget to match. This is a buy-it-for-life piece of equipment that won’t need replacing.

Who Should Avoid?

Budget-conscious buyers or casual swimmers. The premium price is hard to justify for occasional pool visits or beach days.

10. YETI Sidekick Dry 3L Gear Case – Best Small Essentials Case

Sometimes you don’t need a full-size bag, just a fortress for your most valuable items. The YETI Sidekick Dry 3L is exactly that: a compact, bulletproof case for phones, wallets, keys, and other must-stay-dry essentials.

The magnetic closure is genuinely brilliant. I’ve used zipper waterproof cases that jam, get stuck with sand, or simply fail after a season. YETI’s magnetic system closes with a satisfying click and opens instantly when you need access. No fumbling with zippers in cold water or dealing with corrosion.

Despite the small 3-liter capacity, this case is surprisingly versatile. I’ve fit an iPhone 14 Pro Max, car keys, wallet, and sunglasses inside without compression. The interior is just one main compartment, which keeps things simple and maximizes usable space.

The 4.8-star rating across 3,241 reviews speaks to customer satisfaction. People simply don’t have bad things to say about this case. It does one thing perfectly and doesn’t try to be everything to everyone. The build quality is unmistakably YETI from the moment you touch it.

Who Should Buy?

Swimmers who only need to protect small essentials. This is also perfect as a secondary case inside a larger gym bag for your most valuable items.

Who Should Avoid?

Anyone needing to carry towels, change of clothes, or pool equipment. The 3L capacity is strictly for small items only.

Understanding Waterproof Bags: What Makes Them Different?

Waterproof bags for swimming use specialized construction to keep water out where regular gym bags would soak through. The key differences are materials, closure systems, and seam construction. Unlike beach accessories that only repel splashes, true waterproof bags can survive full submersion.

Roll-top closures are the most common waterproof technology. You fold the top of the bag over itself multiple times, then buckle it shut. This creates a watertight seal through compression and gravity. When sealed properly, the trapped air also provides buoyancy, helping the bag float if dropped.

Welded seams eliminate the needle holes created by stitching. Manufacturers use high-frequency welding or RF sealing to fuse material panels together without puncturing them. This construction is essential for true waterproofing, as stitched seams would leak even when treated with waterproof sealants.

Material choice affects both waterproofing and durability. PVC is common and affordable but raises environmental concerns. TPU offers similar waterproofing with better eco credentials. Nylon with waterproof coatings provides durability and puncture resistance. Each material has trade-offs between cost, weight, and environmental impact.

How to Choose the Right Waterproof Bag for Swimming?

Choosing the right waterproof bag means matching features to your specific swimming habits. Pool swimmers have different needs than open water enthusiasts, and triathletes require something else entirely.

Solving for Open Water Visibility: Look for Bright Colors and Buoyancy

Open water swimming presents safety challenges that pool swimmers never consider. Boats, jet skis, and other watercraft may not see a swimmer in the water. A bright orange or fluorescent green swim buoy increases your visibility dramatically.

Swim buoys like the New Wave Swim Bubble or ZONE3 Swim Buoy serve dual purposes: keeping gear dry and making you visible. The high-visibility colors are specifically chosen because they contrast with all water conditions. For the same reason, you might see waterproof technology and other water gear using bright colors for safety.

Solving for Pool Organization: Look for Wet/Dry Compartments

Pool swimmers face a different problem: wet gear making everything else damp and smelly. A bag with separate wet and dry compartments solves this by containing moisture where it belongs.

The TYR Alliance Backpack exemplifies this design. Wet gear goes in a lined compartment with drainage, while dry clothes and electronics stay separate. This organization prevents musty odors and protects sensitive items from humidity.

Solving for Submersion Protection: Look for IPX8 Rating

The IPX rating system measures water protection. IPX8 means the bag can handle continuous submersion beyond 1 meter depth. This is essential if your bag might fall into deep water or get splashed heavily during activities.

Lower ratings like IPX6 or IPX66 only protect against splashing and powerful water jets, not full submersion. For true swimming protection, look for IPX8 or “fully waterproof” rather than just “water-resistant.”

IPX Rating	Protection Level	Submersion Depth	Best For
IPX6	Powerful water jets	Not submersible	Pool deck splashes, rain
IPX66	Strong water jets	Not submersible	Heavy splashing, beach use
IPX67	Temporary submersion	1 meter for 30 minutes	Dropping in shallow water
IPX8	Continuous submersion	Beyond 1 meter	Open water swimming, full waterproofing

Solving for Capacity: Match Size to Your Gear

Capacity needs vary dramatically between swimmers. Consider what you’ll actually carry before choosing a size:

• 5L: Phone, keys, wallet, small snacks. Perfect for minimalists.
• 10L: Essentials plus small towel and change of clothes. Good day-trip size.
• 15-20L: Full towel, change of clothes, toiletries, pool equipment. Ideal for regular swimmers.
• 30L+: Multiple towels, full gear setup, food, hydration. For long sessions or multiple swimmers.

Solving for Material Preferences: PVC vs. PVC-Free

Traditional waterproof bags use PVC for its waterproofing and affordability. However, PVC raises environmental and health concerns for some users. Eco-conscious swimmers might prefer PVC-free options like the Sea to Summit Big River, which uses TPU-coated nylon instead.

PVC-free bags typically cost more but offer better cold-weather performance and are recyclable at end-of-life. They’re also less likely to develop cracks after years of sun exposure. Many waterproof bags work great for water sports enthusiasts beyond just swimming, making material durability a key consideration.

How to Properly Use a Roll-Top Dry Bag?

Getting the best waterproofing from your roll-top dry bag requires proper technique. Follow these steps for maximum protection:

1. Fill the bag: Pack your gear without overfilling. Leave about 3-4 inches of material at the top for rolling.
2. Press out air: Before rolling, press down on the bag to remove excess air. This reduces bulk and creates a tighter seal.
3. Roll tightly: Fold the top over itself at least three times. Each fold increases waterproofing and security.
4. Buckle securely: Connect the buckles on each side. The rolled material should create a cylinder shape.
5. Test the seal: Press on the bag and listen for escaping air. If you hear air hissing out, redo the rolls.

Maintenance and Care for Your Waterproof Swim Bag

Proper care extends the life of your waterproof bag significantly. I’ve seen cheap bags last years with care and expensive ones fail in months from neglect.

• Rinse after saltwater use: Salt crystals corrode buckles and degrade materials over time. A thorough freshwater rinse after ocean swims prevents this damage.
• Dry completely before storage: Never store a wet bag, as this promotes mold and mildew. Hang it open in a well-ventilated area until fully dry.
• Inspect seals regularly: Check the roll-top material and buckles for cracks or wear. Replace at the first sign of damage.
• Store unrolled: Keeping the bag rolled for months creates permanent creases that can leak. Store flat or loosely rolled.
• Avoid sharp objects: Punctures are the most common failure point. Inspect gear before packing to remove sharp items that could tear the material.

Frequently Asked Questions

Final Recommendations

After testing and researching these 10 waterproof bags across multiple swimming seasons and conditions, my top recommendation remains the Sea to Summit Big River Dry Bag for most swimmers. The PVC-free construction, proven IPX8 waterproof rating, and durable 420D nylon build make it a long-term investment that justifies its premium price.

For open water swimmers specifically, the New Wave Swim Bubble stands out with over 4,500 positive reviews backing its safety-first design. The visibility advantage it provides is genuinely valuable for anyone sharing water with boats or swimming solo.

Budget-conscious buyers cannot go wrong with the Earth Pak Waterproof Dry Bag. With 15,000+ reviews and a 4.6-star rating, it’s a proven performer that won’t break the bank. The included waterproof phone case adds significant value.

Whatever your choice, remember that proper technique matters more than the brand. Roll your dry bag correctly, rinse it after saltwater use, and inspect seals regularly. With care, even a budget option will serve you well for many swimming seasons to come.