Rainflex Overshoes Black 45-46 BBB Rainflex Overshoes Lightweight and aerodynamic shoecover that protects against wind and rain. Lycra covered with PolyUrethane (PU) rubber gives the highest level of water-resistance and flexibility. 40 mm wide elastic band prevents water to come in from the top opening. Reflective artwork for extra visibility. Industrial-strength YKK-zipper. Flap behind the zipper. All seams are covered with waterproof tape, preventing any water to leak through. Kevlar reinforcements on the sole as well as on the nose.