If you are looking for a top performing ski/snowboarding helmet then try Anon’s Prime MIPS Helmet that features a hybrid shell construction, multi directional impact protection system and ultimate comfort and even pressure with the 360 degree Boa Fit System. Ideal for more experienced skiers and snowboarders, the Prime MIPS will give ultimate comfort and protection all day long on the ski slopes. Features Sizing: Medium = 57cm-59cm, Large = 59cm-61cm Hybrid 50/50 Shell construction ICEdot Emergency ID Service MIPS System In-shell 360 degree Boa-Fit System Fidlock Snap helmet buckle Active Ventilation with 23 vents Goggle ventilation channel Expedition fleece liner and ear pads Compatible with separate audio accessory Simple Fit Weight: 532g Certification: CE 1077B/ASTM 2040 GLOSSARY MIPS System (Multidirectional Impact Protection System) – a low friction helmet liner that allows the helmet to slide relative to the head and protect against rotational violence to the brain caused by angled impacts. ICEDot Emergency ID Service – stores your emergency contact and medical information Active ventilation lets you control your helmet climate, simply open for maximum airflow or close to keep the warmth in, or anywhere in between. Fidlock® Snap helmet buckle – a magnetic, ultra-fast and secure buckle that can be opened and fastened with easy, even when wearing gloves. BOA® technology allows easy, on-the-fly micro adjustments with just a turn of the dial to smoothly distribute pressure for all-day comfort, without adding any bulk to your kit. The Hybrid 50/50 technology combines wear-and-tear resistant durability on top with the performance and feel of featherweight bottom.