2017 Anon Anon Helmet Blitz Color: Gray/Gris [Snow Goods] Japanese 正規品 (Genuine) Men's Size M 57-59cm The underside of the brim has an open/close ventilation system that allows for good airflow inside the helmet. Purchased new and used about 2-3 times, then stored at home, but I'm selling it because I haven't had a chance to use it recently. It was too small for me, so I didn't use it much. I think it's relatively clean with few scratches and little wear. I've taken photos of the whole thing, so please use those to make your judgment.