Lumos Ultra Helmet is the newest, most popular helmet at the friendliest price. Lumos Ultra will simplify your life, protect your head and help prevent accidents. It comes integrated with 3 COB LED modules that give you a full 360˚ coverage - ensuring you’re seen by motorists from all angles. It also has turn signals that you can activate using the included remote or an Apple Watch. Ultra is equipped with a click-dial fit system to ensure that it sits firmly, yet comfortably, on your head. Lumos Ultra is compatible with Strava and the Apple Watch. The M-L helmet is adjustable from 54cm to 61cm and fits most adults & teens.