Whatever your head size and shape, these self-adjusting safety glasses give a very comfortable secure fit. 3M™ 'pressure diffusion temple' technology allows the temples to naturally adjust to your head without increased pressure on the face for all day use. Class 1 impact polycarbonate lenses with anti-scratch and anti-fog coating for performance and durability with UV protection. Stylish in design and weigh just 18g. EN:166:200. Lens: Clear 2C-1.2 3M 1FT.