The Speedform backpack features a 20L capacity in the main compartment. Features an integrated speed hump, the hardshell chassis is designed to be aerodynamic at speed to reduce drag. And an integrated helmet cradle system that is easy to deploy, allowing you to walk around hands-free. The quick access exterior pocket is fleece-lined as not to scratch your sunglasses or electronics. Internally, the Speedform is hydration-system compatible and features a padded 15" laptop compartment. Additionally, the internal pocket is sized to hold our Viper D3O back impact protector.