The original leg cover with PATENTED ANTI-FLAP INFLATABLE SYSTEM(S.G.A.S.):the inflatable chambers on the sides of the cover prevent flapping at high speed. -Three-layer construction to ensure thermal protection and waterproofing: -Waterproof heavy Polyamide outer shell and taped seams -Fully waterproof inner membrane -Lined interior for extra warmth -S.G.A.S. anti-flap inflatable system -Anti-theft system(metal ring)available for models not requiring screw fixing -Large storage pocket -Built-in saddle cover -Reflective edging