The Quadra Waterproof Roll-Top Backpack is engineered for water-intensive environments, delivering comprehensive moisture protection through advanced material engineering and thoughtful design. Its dual-coating system—PU coating to the front and TPU coating to the back—provides superior waterproofing across all exposure surfaces, essential for water sports, maritime operations, and unpredictable weather conditions. Complete waterproof integrity is achieved through material selection and construction methodology. The waterproof fabric foundation is complemented by a waterproof main compartment featuring a roll-top closure—a proven design that creates a secure seal against water ingress whilst remaining intuitive to operate. This closure system eliminates reliance on zips in the primary compartment, removing a common failure point in waterproof designs. Carrying comfort is prioritised despite the protective engineering. Padded adjustable shoulder straps distribute load evenly across your shoulders, reducing fatigue during extended wear. Dual side compression straps stabilise load and prevent shifting during dynamic movement, critical when navigating water environments or technical terrain. Practical organisation includes a front zip pocket for quick-access items that don't require waterproof protection, enabling efficient gear management without compromising the sealed main compartment. The tear-out label permits identification and personalisation. At 18 litres, this backpack delivers substantial capacity for day expeditions, water sports outings, or professional maritime applications. The compact profile maintains manoeuvrability in confined spaces whilst accommodating essential gear. Whether paddling, boating, coastal hiking, or operating in persistently wet conditions, this roll-top backpack represents the professional choice for uncompromising waterproof protection.