Made of silicone and ergonomically designed goggles to ensure fit on different facial shapes and keep your eyes free from moisture silicone materials make this swimming goggles suitable for indoor and outdoor swimming. Adjustable silicone strap and flexible bridge bracket for most adult men and women. The wider flexible silicone frame provides great comfort and forms a perfect seal around your eyes to ensure that no water gets in Comfort: The head strap is made from silicone which is strong, durable, and comfortable, at the back of the strap is a central split for added comfort and reduced pressure around the eyes. For even more added comfort, the hypoallergenic soft seal gaskets mould to the contours of your face for a softer ‘second skin’ style comfort. The quick-adjust system is fast and secure, the easiest way to get just the right fit. Safety: All swimming goggles feature UV protection blocking 99-100 percent of sun’s harmful UV rays and anti-fog for a safer, clearer swim and longevity. ABOUT THE POLARIZED GOGGLES:. Glare happens when your eyes are exposed to too much bright light. Polarized swim goggles are great for reducing glare in bright situations, make images appear sharper and clearer, increasing visual clarity and comfort. package included: 1 x swimming goggles