Tempered glass lens meets all ANSI standards. * Liquid silicone facial skirt and strap provides soft and comfortable fit. * High efficiency channel system designed to maximize thrust and minimize fatigue. Flexible ribbing system for flexibility and minimize fatigue. Quick release buckle allow foot straps to be taken off easily. * Submersible dry to prevent water entering into the tube. Silicone patterned mouthpiece for extra comfort. * Available in S/M (4.5-8.5), L/XL (9-13)