Light-weight 3mm double-glued and blind stitched neoprene construction aqua shoes. Flexible rubber toe & heel caps guard against abrasion from foot pockets & fin straps, and for extra protection and ankle support. Flexible vulcanized rubber sole with non-slip ribbed tread withstands the rigors when diving on rocky coastlines, and provides unparalleled stability on sandy beaches, and boat decks as well.