Perfect for water sports and all types of activities, the OverBoard Pro-Sports Waterproof Backpack protects your gear from water, sand, dirt, and dust. Thanks to a fully welded seamless construction and a 2-way roll-top sealing system (traditional top or side compression), this backpack is 100% waterproof (Class 3 - IP66) and suitable for quick submersion, even floating safely if dropped in water. It features super tough material on the side and base, a front zip mesh pocket, and 'High Frequency' welded construction. For comfort and convenience, it includes padded shoulder straps and lumbar support, a ventilated back panel with air-flow design, comfortable and buoyant lightweight straps with a ventilation system, and an adjustable waist strap and sternum strap with an emergency whistle buckle. Additional features include 2 reflective strips on the front and both shoulder straps, D-rings for multiple attachment options, quick release elasticated webbing, a large internal zip accessories pocket (H: 25cm x W: 21cm), two large outer elasticated mesh side pockets, and a top carry handle. Size Overview 20 Litres: Height: 43cm, Width: 24cm, Depth: 16.5cm, Weight: 1.06kg 30 Litres: Height: 49.5cm, Width: 34cm, Depth: 16.5cm, Weight: 1.32kg Waterproof Rating System Class 3 = IP66: Waterproof so tight it floats or can handle quick submersions. Comes with: 1 x Pro-Sports Waterproof Backpack (available in 20 or 30 Litre) 1 x Carabineer Clip 1 x Instructions / Care Guide