SpekZ safety glasses keep you looking cool while wearing your prescription glasses underneath. Lighter than most fitovers, you’ll be so comfortable you’ll barely know you have them on! SpekZ feature rubberized temples for added comfort and grip. The durable plastic frames with polycarbonate lenses give protection against UVA and UVB rays and meet ANSI Z87.1 requirements. Dimensions; Lens Height 1.375”, Lens Width: bottom of lens width: 1.75”; mid lens width 2.375”W; top of lens width 2.25”; Total horizontal width across both sides of frame: 5.5”. Please measure your prescription glasses to be sure they will fit within SpekZ dimensions.