Details The MSR Carbon Hex Helmet blends cutting-edge MIPS Integra TX technology and a featherweight carbon fiber shell for optimal coverage without sacrificing performance. Experience peak performance and all-day comfort, whether back woods exploring or pushing your limits at the track. Quality 3K Carbon Fiber Shell (extremely strong and light). MIPS Integra TX is integrated into the comfort liner and provides omnidirectional movement for full coverage. Moisture wicking machine washable cheek pads and comfort liner. Quick release cheek pads for emergency removal. 12 intake vents and 4 exhaust vents for added airflow. 2 eyebrow vents to evaporate sweat. Wire mesh chin bar vent. Elevated roost protection on mouth guard. Padded chin strap with D-ring closure. ECE and DOT approved. Raised chin bar for collar bone clearance. Rear shell designed for improved neck brace compatibility. Fixed, non-adjustable sun visor design (visor is replaceable). Weight: 1250g. MIPS info: When a helmet is impacted at an angle, it can cause the head to rotate suddenly and violently. This is a common source of concussions and brain injury. The Mips® Integra TX system is designed to provide movement inside the helmet to help reduce rotational motion to the head in certain angled impacts, thereby lowering the risk of such injuries. Mips® Integra TX features a thin, low-friction layer integrated between the fabric and the foam of the padding, allowing omnidirectional movement inside the helmet. This makes for an invisible and fully integrated system. The low-friction layer is designed to help reduce rotational motion without altering comfort and fit or adding weight to the helmet. Size Fitment XLarge 24"-24.4" Head Circumference