Astral Sphere Photochromic UTMB

The Astral Sphere UTMB is a limited edition co-developed with UTMB — the world's most iconic ultra-trail race. Built on the same spherical lens platform as the Astral Sphere, it is designed for athletes who push the limits of trail running in the most demanding mountain conditions. The ImpactX Photochromic lens transitions automatically as conditions change — ideal for mountain sport, trail running and road rides where light shifts constantly.