NEOsplit Mask Straps are designed for almost any mask with a removable strap. Its 5 mm nylon ll neoprene material, split strap design, streamline snorkel clip holder & non-slip buckle makes the NEOsplit mask strap the most comfortable, flexible & secure neoprene mask strap available! Mask strap will not tangle or pull hair while the split design allows space for a pony tails. Strap has durable nylon webbing for attachment to mask buckles and all edges are taped and sewn for added strength. JAWS NOEsplit Mask Strap comes in multiple reversible colors.