The Arc'teryx Granville 10 Courier Bag is a weather-resisant bag for hauling some Items while riding your bike. At 10L it isn't huge so it won't topple you over on your bike, but it will still carry some essentials when you're headed into town. Inside you can haul a laptop at 12 inches or smaller or tablet and an e-reader. Add a long sleeve and toss your keys and wallet into the external zip pocket. Sling across your back and the padded backpanel offers comfort during the ride. Features of the Arcteryx Granville 10 Courier Bag N400r-AC2 fabric with critical seams taped for weather protection Padded 12 laptop sleeve and a stretch mesh zippered pocket for smaller Items like a mouse, chargers, etc Dual Arc'teryx one-handed release custom buckles for main compartment access, zippered top flap increases security External zippered pocket with key clip holds wallet, phone, keys, etc Laminated padded back panel for comfort and wraps the body and adds stability Laminated cross body shoulder strap is ambidextrous and can utilize a three point system for secure, comfortable carry Custom TPU zipper pulls for ergonomic access Fabric Details N400r-AC2 Nylon 6 Ripstop