The TYR Kids' Swimple Swim Goggles are constructed with durable, hypoallergenic Silicone gaskets. The Swimple features optical grade, polycarbonate lenses with anti-fog and UVA/UVB protection, a secure release button for quick and easy strap adjustment, and a small, unibody frame to accommodate various facial shapes. All TYR Kid's goggles have been tested and approved in accordance with the Consumer Product Safety Commission's guidelines. It's never too early for excellence!