The Bobster MX1-200BK offers superior quality and comfort. The lens has 100% protection from harmful UVA & UVB light. They also come standard with lens studs so you can attach your tear off lenses. The high quality, 3 layer foam (Neoprene, foam & Fleece) provides comfort. The frame vents allow air to circulate, preventing the lenses from fogging up. The adjustable strap come standard with silicone non slip strips to keep your goggle in place during the roughest of rides.