Bbb waterflex overshoes designed to offer the best protection against the rain advanced 2mm waterflex material outer polyurethanepu rubber with inner microfleece give the highest level of water resistance flexibility and durability 38mm wide velcro strap allows you to use these shoe covers for in line skates reflective artwork for extra visibility industrial strength ykk zipper flap behind the zipper velcro rubber strap for a secure fit all seams are covered inside with wa