The Athena Goggle features a soft, one-piece frame that creates a comfortable and secure seal. Versatile color tinted lenses provide moderate protection from the sun, so they are suitable for indoor and outdoor swimming. Additionally, Fogbuster anti-fog coating controls moisture and keeps the lenses clear. Curved Lens Technology provides you with 180° of peripheral vision and eliminates underwater distortion. All Zoggs goggles feature safety-tested UV protection against both UVA and UVB rays. Just pull the strap to tighten and lift a lever to loosen the Quick Adjust silicone split-yoke strap. Fits narrower to average width faces as measured at the eyes.