An Introduction to OverBoard Back in 2006, it all began on the beaches of Thailand and Australia when two backpacking friends had quit the rat race and slipped on their flip-flops to spend six months on an epic beach, boat, surf and scuba holiday. For weeks they fought to keep their technology, valuables and clothes safe from the impact of water and sand. And finally light dawned - what they needed was a totally trustworthy waterproof bag that guaranteed them peace of mind without slowing them down. Back home, they were researching, designing, innovating and producing their first prototypes - the perfect dry bags, which became the first OverBoard product. The 20 Litre Classic Waterproof Backpack Perfect for water sports and all types of activities, the Yellow 20 Litre OverBoard Waterproof Backpack protects your gear from water, sand, dirt and dust. Thanks to a unique seamless construction and roll top sealing system, our backpack is 100% waterproof and suitable for quick submersion so you can take it out on the water. 100 % Waterproof This versatile backpack has all attributes to keep you protected from the elements as it is 100% water-proof, snow-proof, dust and sand-proof, coming with a Class 3 Waterproof Rating as it is so tight and dunkproof it can perfectly handle quick submersions or floats on water when correctly sealed. Add to this the bag's welded construction and the weather is no harm to any of your carried goods any longer. The backpack's front panel is made of tough PVC tarpaulin while the sides and base are made up of PVC bonded nylon offering a durable and extremely resistant product. Secure Storage The intelligent Fold Seal System provides an effective way of sealing this backpack by rolling the neck tightly towards the front of the backpack three times and bringing the ends together to buckle to securely fasten. In total, the backpack has a capacity of 20 litres body. Floats safely if dropped in water. High Frequency' welded construction . Protects contents from dust, sand, dirt and water. Comfortable and buoyant light-weight straps with ventilation system. Elasticated front webbing. Quick access front pocket for items you want close to hand. Two-way sealing system (top or side). Adjustable sternum strap and waist belt. . Super reflective patches on the front of the bag and shoulder strap. Walking pole Velcro loop attachments.