Waterproof Backpack 20L - Floating TPU Coated Dry Bag

Our review looks at the Waterproof Backpack 20L, a TPU coated dry bag aimed at paddlers, anglers and anyone who needs gear that will float and resist water. The single biggest reason to consider this pack is its 100% waterproof claim combined with an air valve that can keep the bag afloat, which makes it especially useful for kayak, fishing and boating trips where gear dropping into the water is a real risk. This review focuses on real-world features that matter on the water and trails.

Key Features

• 100% Waterproof: The TPU material and air-tight zipper are designed to keep water out so contents stay dry during wet activities.
• Floatation Valve: The built-in air valve allows the bag to be inflated to help it float if accidentally dropped overboard.
• Waterproof Phone Case Included: A supplied waterproof phone case adds protection for electronics and is useful for varied travel activities.
• Lightweight TPU Construction: The TPU material is lighter than many heavy-duty waterproof fabrics while maintaining a similar PVC-like structure for portability.
• Ergonomic Carry Options: Removable waist belt, padded shoulder straps and a breathable back panel improve comfort for extended wear.
• External Bottle Pocket: A side pocket for a water bottle keeps hydration handy without needing to open the main compartment.

Who It's For

This pack is best for outdoor enthusiasts who spend time on or near water: kayakers, canoeists, anglers, boaters and beachgoers who want a compact, floating dry bag with comfortable straps for short hikes or dockside use. The floating feature and waterproof phone case make it a sensible choice for anyone who needs gear to remain dry and visible if it ends up in the water.

Those who need very large expedition packs, heavy-duty mountaineering packs or technical hydration systems should look elsewhere; this model is a lightweight 20L design intended for day trips and water sports rather than multi-day backpacking with heavy loads.

Pros & Cons

Pros

• Solid waterproof construction and an air-tight zipper give confidence for water sports.
• Floatation valve is a practical safety feature that helps the bag stay on the surface if submerged.
• Comfort features such as padded straps, a shaped back and detachable belt make it wearable for longer periods.
• Lightweight TPU material and an external bottle pocket add convenience for day trips.

Cons

• Some customers report mixed results with the waterproof feature in extreme conditions, so users should test the seal before trusting valuables.

Specifications

Capacity	20L
Material	TPU coated waterproof fabric
Waterproofing	Air-tight zipper and waterproof construction
Floatation	Built-in air valve to inflate for floatation
Carry options	Padded shoulder straps and detachable waist belt
Extras	Waterproof phone case and side bottle pocket

Our Verdict

The Waterproof Backpack 20L is a practical, value-oriented dry bag for anyone who spends time on kayaks, boats or at the beach and needs a compact pack that will float and keep contents dry. Its TPU build, ergonomic carry system and included phone case make it a sensible choice for day trips and water activities, as long as users validate seals before trusting irreplaceable items.

Frequently Asked Questions

Is this bag truly waterproof?
The bag uses TPU material and an air-tight zipper to keep water out, though some users have had mixed experiences and it is wise to test seals before use with valuables.

Will the backpack float if dropped in water?
Yes, the built-in air valve allows the pack to be inflated so it will float when properly sealed and filled with some air.

Is it comfortable to carry for longer walks?
Yes, the pack has padded shoulder straps, a breathable shaped back and a detachable waist belt to improve comfort on longer carries.