UShake Kid Swim Goggles, Anti-Fog Lens and Hypoallergenic Silicone Gaskets Child Swimming Goggles for Kids and Early Teens SILICONE GASKETS: Most comfortable children's goggles. Because Ushake swim goggle constructed with durable, hypoallergenic silicone gaskets. Soft, flexible silicone frame provides maximum comfort. Gasket rests snugly and securely in the eye socket. GOOD PERFORMANCE LENSES: UV protection and anti-fog. Shatter resistant, polycarbonate Clear lenses. Filter and expanded side view allow great visibility. MATERIAL: Premium PC material, PVC and latex free. EASILY ADJUSTABLE SIDE CLIPS: Side release UShake Fit clips allow easy head strap adjustment. Soft Silicone strap for ultimate comfort. Kindly adjust it gentlely without big force for long term using. FRAME:Hypoallergenic Silicone, Soft, flexible one-piece frame. GOOD PERFORMANCE LENSES: UV protection and anti-fog. EASILY ADJUSTABLE SIDE CLIPS: allow easy head strap adjustment.. FRAME: Hypoallergenic Silicone, Soft, flexible one-piece frame SILICONE GASKETS: constructed with durable, hypoallergenic silicone gaskets. Soft, flexible silicone frame provides maximum comfort. Gasket rests snugly and securely in the eye socket. for easy storage and carry in backpack to anywhere; avoid scratches on the lenses. Our lenses are with<span class="a-text-italic"><u>anti-fog coating</u></span>inside. Please<span class="a-text-bold"><span class="a-text-italic"><u>do not wipe</u></span></span>it by your finger during swimming. Clean it<span class="a-text-bold"><span class="a-text-italic"><u>with fresh water</u></span></span>after swimming and<span class="a-text-bold"><span class="a-text-italic"><u>dry it in air</u></span></span>. UShake is not liable for inproper treatment to our goggles. Use anti-fog spray to put them on inside lens. Place one small drop of dish soap on each lens, followed by a rinse in cool water for one to two minutes before using.