Julbo reinvents mountain goggles with Ultimate Cover, combining high protection and ultra lightness. This model provides optimum protection for the eyes and face thanks to a nose guard and removable Spandex side shields that comfortably protect against sun, wind and cold. Its modular design can accompany the mountaineer from training in the valley to reaching the highest peaks. CustomFIT temples with precise and long-lasting adjustment, combined with a Grip Tech structure, produce a tailor-made grip and a lightweight spec. Fitted with a 3D Nose, the glasses offer flawless hold when you're working flat out, with or without a helmet. A panoramic lens creates an energetic style while giving you protection and visual comfort thanks to REACTIV Photochromic lenses. Ultimate Cover will help push your limits all the way to the top! Old Name: REACTIV Performance 2-4 (Zebra). Photochromic lenses with high-speed activation and deactivation (cat. 2 to 4 - visible light transmission rate: 7% - 35%)