100% Speedcraft SL SunglassesThe Speedcraft SL model is designed with a shorter lens profile and more compact nose bridge to fit smaller faces. With the exception of the lens air scoops, the SL model maintains the same high performance features and lens technology. High impact resistant and lightweight polycarbonate lenses 5 base cylindrical shield lens for increased peripheral view and protection 360 degree visibility for unobstructed views and optimal field of vision