The Julbo Explorer Glacier Glasses are designed to provide the ultimate in protection, comfort and coverage. The Spectron 4 lenses have an anti-fog coating, block 100% UV (ABC) and are a cat4 darkness which is ideal for high altitude mountaineering and other high-glare situations. The temple tips are moldable to improve comfort and security.Retainer strap holds glasses in place. Spectron 4 lenses have anti-fog coating and are cat4 darkness for high altitude mountaineering and other high-glare situations. 100% UV (ABC) protection. Moldable temple tips for comfort and security. Includes a hard case.