Fox Proframe Clyzo / Full Face Helmet Breathable full-face mountain bike helmet. Conquer the mountain with this full-face protection specialist. The Proframe Clyzo Helmet is the original full-face trail helmet and is still the market leader. Designed to meet the needs of all-mountain riders and enduro racers, it packs Mips technology into a superlight shell. Technical Info . Mips equipped . 3-position adjustable visor compatible with goggles . Removable under visor GoPro mount included . Meets the ASTM-F1952 Downhill MTB certification standard Lightweight for your ride. Keep your head and brain protected while smashing out your favourite trail. Go for that podium win at blur speed.