HYPOALLERGENIC – All Tilos products are manufactured from 100 percent pure neoprene made from an exclusive formula called X-Foam, which is made from limestone (not petroleum) neoprene. This means it is completely petroleum-free and hypoallergic for people with sensitive skin. This also makes X-Foam the only neoprene formula that complies with the very strict P.A.H. and REACH test requirements. NON-SLIP GRIP ? Dotted silkscreen sole is abrasion and tear resistant. Plus, it keeps you from slipping or falling. Wear these socks with confidence, even in rugged or slippery environments. RELIABLE DURABILITY ? Glued and flatstitched seams minimize water flow and maintain strength without irritating your feet, blisters or hotspots. SUPER STRETCHY ? top of the line 4-way stretch neoprene forms to your feet for a comfortable fit. VERSATILE – This pair of neoprene water socks is perfect for various water sports like swimming, diving, snorkeling, paddle boarding, kiteboarding, wakeboarding, kayaking, rafting, water aerobics and other sports like beach soccer, beach volleyball and liner for your hiking boots.