The Rolltop Backpack protects you from the elements while you're traveling from point A to Z, making it an essential urban essential, perfect for commuting by bike or on foot. To protect your essentials from the rain, fold the rolltop into a tight roll and secure it with the signature carabiner. It also features a side-accessible laptop sleeve, a front zip pocket, and a padded back panel. Cycling-friendly features include a front D-ring – perfect for attaching bike locks – and a buckle-fastening sternum strap for a secure fit.The Rolltop Backpack is made with Rains' signature waterproof PU fabric, designed for strength, durability, and a smooth feel.Material: 100% Polyester with Polyurethane CoatingBacksheet: 100% PolyesterWaterproof Rating: W3 – Waterproof Protection from Light RainWater Head: 8000 mmDimensions: H 48 x W 32 x D 11 cmCapacity: 13 litersWeight: 835 gFeatures:Roller-top opening with snap-button compression securely closes and secures for rain protectionSignificant carabiner closureSingle main compartmentFront pocket with coated zipperPadded air mesh back panelSide-accessible laptop pocket fits a 16-inch deviceAdjustable, padded back strapsStrap-style carry handleAdjustable sternum strap