Get unmatched clarity and protection with the Ski-Doo Trench OTG UV Goggles. These OTG snowmobile goggles were specially designed to snuggly fit over most prescription glasses, shielding you from harmful UV rays and intense glare to wind and pelting snow. Plus, they feature a thermal-tinted lens to minimize fogging so you can keep your sightline clear while you focus on the trail ahead. Sizing & Fit Fits over most of the prescription glasses on the markert with lenses height below 2in (51mm) and with branches width on 5¾in (146mm) Thermo-formed 3-layer face foam offers best fitting; Visor, Shield & Optics Injection-molded PC cylindrical lens provides distortion-free vision and enhanced impact resistance; Materials & Construction No-slip silicone strap keeps goggles in place; A vibrant lens tint with light silver mirror that increase visual acuity in extremely flat and low light conditions. Safety & Visibility Features injection double lens which is anti-scratch, anti-fog and distortion-free optics. Ventilation & Temperature Management Removable nose guard for extra deflection against cold and debris.