Essential protection open-face performance helmet. The Speedframe Solid Helmet features the iconic styling of Fox plus Mips® to keep you protected on the trail, optimized venting to keep you cool, and the 360° Fit System for a perfectly dialed fit. Add in the legendary aggressive Fox design DNA, and you have one of the most shred-ready MTB helmets on the trail today. Key Features: Mips® equipped, 360° Fit System allows you to dial in your perfect fit every ride, Adjustable visor is compatible with sunglasses and goggles. Specifications: Mips® added protection system has been proven to reduce the rotational motion when implemented in a helmet by absorbing and redirecting energies and forces otherwise transmitted to the brain. Optimized venting with channeled, in-molded EPS provides efficient cooling. Removable, washable moisture wicking liner. 360° Fit System allows you to dial in your perfect fit every ride. One-hand-adjustable visor is compatible with sunglasses and goggles. Sunglass-specific storage solution. Sizes: small, medium, and large (see size guide for measurements). How to Dial Your Fit: 360° Fit System - counterclockwise to loosen, clockwise to tighten - allows for a precisely dialed fit. Adjust while wearing the helmet. Back cradle: four points of adjustment move the cradle up or down your head to ensure the best fit possible. Care: For care instructions, see our Helmet Care Guide. Note: Avoid exposure to aerosol sprays like bug repellent and sunscreens as they can cause your helmet's finish to peel. Materials: 38% EPS, 22% nylon, 34% PC, 4% polyester, 3% POM.