Externally bonded seams for maximum rain protection Handlebar air vents to prevent condensation Tough outer protects against weather & knocks Soft lining protects against scratches Reflective panels increase visibility at night Adjustable belly strap holds it in place Heat resistant lining material in case of momentary contact with exhaust Strategically positioned holes facilitate the use of a lock; lock pouch helps to keep your padlock off the ground Fits over all Oxford Top Boxes Front inner pocket with PVC window to hold a solar panel charger