These goggles with fitted roll-off system from progrip are ranked the No. 1 frame & lens in the industry. They come with triple density felted foam, light sensitive, no-fog, anti-scratch lens technology and a wider ventilation area. They are pre-fitted with tearoff posts and have pre-cut foam and moulded channels to allow eye glasses. They are 25% wider than all other roll off brands on the market which make it easier for visibility, especially in muddy conditions.