Made with durable, ultrasonic welding and seam-sealed waterproof material, providing excellent protection even in harsh environments. The waterproof roll-top closure protects your belongings from sand, splashes, and inclement weather. Furthermore, the newly developed Handle Loc system allows for quick and secure attachment to racks. Removal is easy, simply press and pull the top handle. Handle Lock System Compatible Diameter: φ8/10/12mm Shoulder strap included Size: L150 x W260 x H450mm Capacity: 15L Weight: 920g Please refrain from purchasing if you are concerned about storage at home.