This brand new travel fin combines the fitment benefits of an open heel fin, with the comfort and barefoot freedom of a full foot fin, Compact, Lightweight, Super comfortable, Practically unbreakable strap, Good performance with low effort, Ultra durability: 100% Monprene construction, Flexible fit.Barefoot Design features a replaceable self-adjusting bungee heel strap that allows for a versatile fit and makes the fin easy to don and doff. It can also be used when wearing neoprene socks.