The last pair of shoe skis you'll ever buy. A 3mm neoprene bootie mounted to a 1/2" lightweight flex rubber sole. Stainless steal mounting hardware, rubber toe cap and heel counter, provides ultimate foot protection. An over the arch strap holds the foot in place while specially vented side panels allow water to drain out. You control the tightness of this shoe. The triple glued and blind stitched seams are comfortable and durable. Easy on, easy off design.