Brand NEW details About this item About this item NARROW FIT FOR SMALL HEADS: Is your head small or just below average? These will probably fit you. Lens Material: Polarized 1.2mm High Index TAC Plastic Frame Material: Nylon Lens Tint: Cat 3, Visible Light Transmission: 11.5% UVA & UVB Protection: 100% The Turbo Adjustment: Adjustable lens angle. Turn it all the way up to Op-Turbo; perfect for those low-effort scenarios OR turn it all the way down to Full Turbo for the highest intensity situations.