“Aphotic” from HUUB, our first swim goggle that gets darker or lighter through Photochromatic technology during the race without you even noticing. A self regulating lens that delivers the comfort and vision needed to maximise your sighting and assist your swim.“Photochromatic” Clarity of vision aids sighting and allows you to move around obstacles and other swimmers even when you swim into the sun, or with your back to the sun.These incredible lenses adjust perfectly and take only 160 seconds to go from clear to dark delivering ultimate performance for every turn of every buoy.Special patented photochromic dyes that cause the lens to activate, or darken, when exposed to ultraviolet rays from sunlight. When the UV light diminishes, the lenses fade back. As light conditions change, the level of tint adjusts, offering the right tint at the right time.Available in two colours at launch, the “Aphotic” swim goggle is the first step from HUUB to “Goggle perfection” suitable for use in door and outdoor and in any light condition.Designed to fit the face perfectly with a density of silicon and TPR matched to create a perfect fit and a feather like feel even on the most interesting of facial profiles.For a great swim you need a comfortable fit and the ability to see as much as possible while having as much light as possible blocked out when the sun is high or water reflection is optimal.Supplied in a clam shell zip goggle case.Online Reviews:220 Triathlon - "Verdict: Superior eye-protectors that perform well in pool to lake, 90%" Click for the full reviewSlowtwitch - "The Aphotic is the goggle you'll want if what interests you is a photochromic lens in the larger, wider-vision, semi-mask motif" Click for the full reviewLens material : PC Gasket material : SiliconeStrap material : SiliconeSide button: PCOuter Frame : TPR Inner Frame: PC