The Zoggs Aqua Flex swimming goggles are suitable for both indoor & outdoor swimming & have smoke tinted lenses that protect against the sun. Your comfort is ensured by the soft split-yoke silicone strap, the larger Soft-Seal Plus hypo-allergenic frame, the seal that moulds to the contours of your face & the flexibility that comes from the unique 4 Flexpoint Technology. Vision is great too thanks to the 180-degree visibility granted by Curved Lens Technology & the transparent lenses which feature anti-fog Fogbuster technology. Adjust these FINA approved googles that ensure optimum UV protection using the easy adjustment mechanism.