The Boss is a Dual Lens Pack goggle and comes with one All-Round lens and one Low-Light lens.This goggle style features our Magnetic Interchangeable Lens technology for use in low or high light, means they are suitable for all kinds of weather.Specifications:.Triple layer custom fit foam.100% - UV Protection.Adjustable strap.Helmet compatible.Italian anti fog lens.Extra Lens:Yes.Silicone waves.Category 2 & 3.Dimensions:98mm x 180mm.