Aerodynamic Design Optimal height and width reduces drag caused by stem and headset spacers with no increase in frontal area 5:1 ratio aerodynamic airfoil design Non-porous, extra smooth exterior reduces drag Focus on the Road: Smarter Features for Carefree Storage Two large, easy-to-grab Super-Slide zippers open and close from either direction Contents are highly visible against the silver colored interior Installs Quickly and Stays in Place Durable, non-seizing steel screws for easy installation Non-slip, rubberized hull stabilizes storage Structured inserts retain aero shape Dimensions 10.5" (26.7cm) L x 2.1" (5.3cm) H x 1.5" (3.8cm) W Material Non-porous, durable Vinyl exterior. Reflective, insulated interior lining. Anti-slip rubber base. Volume 0.38 liter (23.2 in3) Weight 101 g (3.5 oz)