The originale equipped with the PATENTED WINDPROOF INFLATABLE SYSTEM S.G.A.S: le inflatable chambers on the side exit edges avoid venting at high speeds. - Three-layer construction to guarantee watertight sealing and thermal protection: - watertight heavy nylon exterior with taped seams - 100% waterproof inner membrane - padded interior - S.G.A.S. (patented windscreen system) - anti-theft ring (only on unconned models) - large storage pocket - seat cover inserted into the harness - reflective profile