50% Polycarbonate, 30% Thermoplastic Rubber, 20% Silicone. Design: Contrast, Logo. Attachment Clip, Leakproof, Single Layer Construction. Fastening: Adjustable, Cinch Buckle. Double Silicone Head Strap, Orbit Proof Technology, Watertight. Embedded, Hard lens, Wide Vision Lens. Hypo-Allergenic. Ref: UTCS458