Beer Optics Cerveza MX Goggles (Cerveza) Pliable Polyflex urethane frame material contours to your face for the ultimate in comfort and protection Adjustable double buckle woven strap is silicone backed for excellent placement and hold The Dry Beer Otpics goggle comes standard with a tinted anti-fog coated, polycarbonate lens that has 100 per cent UVA protection Hydrophilic EO1-5 two layer, fleece lined face-foam forms to the face with an amazing seal and moisture wicking comfort