Patagonia Disperser Roll Top Backpack 40L Extremely water-resistant 40L roll-top backpack adjusts to securely carry large or small loads. Good internal organization and has a built in net sheath. Gear Capacity: 40 L (2,441 cu in) Dimensions: 14" x 9" x 20.5" Weight: 2 lbs 9.3 oz (1170 g) Specs & Features Hardworking, Durable Fabric - Body and webbing are made of sturdy 100% recycled nylon; back panel, shoulder straps and lining are made of 100% recycled polyester Designed to Keep Out Water - Bag is watertight up to the roll-top closure and designed to keep out water through prolonged exposure to the elements Nonabsorbent Back Panel and Straps - Hydrophobic back panel and shoulder straps do not absorb or retain water Inside Pocket Keeps Things Organized - Internal organizer pocket separates small items from the main compartment contents and can be transferred to external lash points when quick access is critical Integrated Net Scabbard - Left- or right-handed net scabbard is integrated into the back panel for easy, out-of-the-way net stowage with either hand Vest and Work Station Compatible - Compatible with our Convertible Vest, allowing for interference-free access to essentials while on the water; pack volume is 40 liters