Xcel X-Flex are high neoprene boots 3mm thick. Split toe gives you better board feel and makes the boot hold onto foot tighter. They are flexible, which enable you to easily put them on and off, even in very cold days. Feature adjustable velcro strap across instep and back ancle. Additional pulley-strap above heel will make it much easier. They provide comfort and warmth in cold days on the water. Glued and blind stitched seams make them durable and tight. On the feet they feature anty slippery rubber which provides stability on the board.