●Perfect for your Summertime recreational activities ●Surface Material: Nano Environmental Adhesive; Middle layer: Cotton Elastic Cloth; Bottom layer: Environmental Protection Silicone Anti-slip Particles ●The Barefoot Doobie Foot Pad uses a specific hypoallergenic certified adhesive. The product can only be used once BUT the biodegradable material has a small burden on the environment. ●The Barefoot Doobie foot pad will give you the protection that you desire in Hot weather, and on Cold surfaces. They protect your soles from hot pavement and rocks/glass/ while allowing you to feel like youre still barefoot. Use them while swimming, playing beach volleyball, at the spa, surfing, walking on grass, rocks, exercise or even yoga.