The POC Iris Comp is an excellent race goggle! Ripel and Anti-Fog Treatments will allow you to keep your focus on the finish line while beading up any water or snow that may find its way in your field of vision. Triple Layer Face Foam will keep a tight seal on your face, and an extra Silicone Grip on the strap will prevent them for sliding up your helmet. The Optical Grade Cellulose Propionate Single Lens offers distortion free vision. Two Race Specific Lenses are included, a Smokey Yellow for Overcast Conditions, and a Clear Lens for the low/flat light, and night time races. Ripel, Optical Grade CP Single Lens, Anti-Fog Treatment, Triple Layer Face Foam, Silicone Grip on Strap, Compatible with All Iris Lenses, Smokey Yellow and Clear Lens Included, Lenses by Zeiss Optics, Race: Yes, Category: Adult, OTG: No, Helmet Compatible: Yes, Spare Lens Included: Yes, Goggle Ventilation: Medium, Goggle Lens Change: Moderate, Frame Size: Medium, Lens Shape: Flat, Lens Type: Non-Mirrored, Model Year: 2019, Product ID: 447989, Model Number: 40014 1002, GTIN: 7325540741149