BBB's RainFlex Overshoes are a lightweight, slim overshoe that protects your feet the harstest conditions. The RainFlex Overshoes are fully waterproof with taped seams to prevent water coming through and Kevlar reinforcements on the sole and nose for durability. Features: Made from lightweight and extremely flexible Lyrca. Polyurethane coating to protect against wind and rain. Waterproof taped seams to prevent leaks. Aerodynamic design. 40mm wide elastic band prevents water to come in from the top opening. Kevlar reinforcements on the sole and nose.