RECYCLED POLYESTER ?? A wide selection of our fabrics are knitted with polyester yarn made from recycled plastic bottles, reducing 26% of carbon footprint per kg of fabric. HYPOALLERGENIC ?? Tough neoprene soles 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 hypoallergenic 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. 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 lycra forms to your feet while adjustable ankle cuffs guarantees a perfect fit each time. VERSATILE ?? Great for snorkeling, beach sports, paddle boarding, tide-pooling or just hanging out! 10 available sizes perfect for all Men, Women and Kids alike.