For the sport rider seeking an aerodynamic and aggressive-looking backpack, the D-Mach offers a practical cut and numerous compartments, such as special shoe storage for commuters. A reinforced foam profile on the back enhances air circulation. The streamlined hard-shell exterior is almost waterproof and will not deform under wind shear. Soft neck shoulder straps increase comfort while riding and prevent scratching the outside of the helmet. Capacity: approximately 22.2 L.