Swans Ascender SR-81PH PAF Photochromic Blue to Smoke goggles auto-adjust lens brightness to UV light for all-weather open-water visibility.

Open water / outdoor swimming model. Photochromic lens that changes the lens colour according to the amount of ultraviolet rays. The curved lenses provide a wide field of view, making them ideal for spotting lane ropes and buoys. Additionally, the highly adhesive 3D cushions, designed to fit the shape of Japanese faces, prevent slippage during starts and contact, eliminating concerns about water entering the goggles. Photochromic lenses are a technology that changes brightness in response to the amount of ultraviolet (UV) light, automatically adjusting the lens brightness for all weather conditions, from cloudy to sunny. A thin water film forms on the inside of the lens to deliver strong anti-fog performance. Trusted by top athletes, especially in events like open water swimming where long-lasting clear vision is essential.

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