Ride Concepts Deploy MIPS Helmet Trail-tough Designed for challenging trail days, the Ride Concepts Deploy MIPS Helmet packs in high-level protection and all-day comfort into one sleek, fully-featured trail helmet. The Deploy MIPS features a full polycarbonate lower shell to increase durability and protection, while the MIPS(R) Evolve Core system helps manage the forces caused by rotational impacts. Sixteen large vents and internal channeling keep air flowing, and the FS2(TM) fit system allows riders to micro-adjust the fit using the easy twist dial. Add in moisture-wicking padding, goggle-compatible indexed visor adjustment, and extended coverage, and you've got a helmet that's ready for any line, any time. Features MIPS(R) Evolve Core technology reduces rotational forces during certain angled impacts Flow-thru(TM) ventilation with 16 large intake and exhaust vents to maintain airflow3-piece shell design with in-mold EPS foam for a lightweight construction and impressive impact protection FS2(TM) fit system with micro-adjustable dial Multi-position indexed visor for easy repositioning of the visor Fidlock magnetic closure for quick, secure strap closure, even one-handed Sizing Size Small Medium Large Head Circumference53 - 56cm56 - 59cm59 - 62cm Head Circumference20. 85 - 22"22 - 23. 25"23. 25 - 24. 5" | Ride Concepts | Deploy Mips Helmet Men's | Size Large In Black