Crowell GS23 Splash Mirror Kids' Swimming Goggles, Green and Purple. These Crowell kids' swimming goggles are perfect for water activities. They feature a single-piece design. Polycarbonate lenses are connected by a flexible, durable nose bridge. The mirror coating reflects reflections from the water, sharpening vision and improving contrast. The seals and split, adjustable strap are made of soft silicone. They feature an anti-fog coating and a UV filter. A reusable plastic case is included. Materials: PC polycarbonate, silicone.