ULTRA HD lens provides optical clarity, Quick-release system offers simple lens changing capability, 6-point locking tabs integrate with quick-change system maximizing lens retention, Injection-molded 2 mm impact-rated, shatter-resistant lens, Bonded, dual-injection frame construction maximizes strength and durability, Force air intake ports increase circulation and maximize humidity evacuation, Contouring compression seal technology to keep goggles in place, Sweat collection management and drainage system, Perforated triple-layer face foam manages sweat and increases ventilation, Ultra-wide 48 mm strap with thick silicon bead for maximum grip, Removable nose guard for extra deflection against dirt and debris