Features MIPS Technology for Ultimate Protection Equipped with Multi-Directional Impact Protection System (MIPS), this ski helmet ensures superior head protection against falls or impacts. The combination of a super-light shock-absorbing Polycarbonate shell and high-density EPS foam forms a multi-layered defense system Best-in-Class Ventilation Stay cool on the slopes with our ski helmet's advanced ventilation system. Featuring a moisture-wicking netted mesh cap and 8 adjustable vents (including a toggle switch), it efficiently allows hot air to escape, preventing overheating. The easy-to-use slider lets you control airflow even with gloves on Customizable Fit for Safety A well-fitted helmet is a safe helmet. Our ski helmet boasts an easy-adjust dial system for a personalized fit. Compatible with beanies, it also features adjustable side straps to fine-tune comfort. The clip on the back securely holds ski goggles in place, and its shape is compatible with most goggles. All-Day Comfort The removable soft fleece interior liners and thick earmuffs keep you warm in the snow, and they are easily washable. The helmet's lightweight design allows you to wear it all day without feeling heavy Size Chart