Details You bought your season pass for a reason. Now you need a helmet that feels as good on a storm-filled powder day as it does a bluebird groomer session or a backcountry mission. The women's Smith Liberty helmet brings the added energy absorption of zonal Koroyd® and the advanced angled impact protection of MIPS® to let you focus on ripping turns in the alpine and chasing powder stashes in the trees. Its hybrid shell design adds durability without weighing you down, while a plush sweat-wicking liner makes for all-conditions cosiness. And because you love to ski or ride all day, the fit and vents are adjustable on the fly, so you can fine-tune the comfort. Construction Hybrid shell construction Aerocore construction featuring Koroyd®: Smith's objective and design philosophy behind Aerocore™ construction is to increase airflow, improve temperature regulation resulting in fog-free vision and improve impact resistance. The objective was achieved through the combination of materials such as EPS and Koroyd®, a revolutionary new material that absorbs more energy upon impact when compared to international standards, while increasing airflow. Aerocore™ construction through the use of Koroyd® and EPS allows for more vents to be placed throughout the helmet without sacrificing protection and comfort. Fit VaporFit Snow™ dial adjustment system offers 27-degree fit adjustment with the turn of a dial Women's XT2® performance lining Snapfit SL2 ear pads Ventilation AirEvac™ ventilation system integrates with Smith goggles for fog-free lenses Airflow climate control 20 vents Details Snapfit SL2 earpads Outdoor Tech™ audio systems available Lifetime Warranty Certification: ASTM F 2040, CE EN 1077:2007 CLASS B Helmet Size S = 51-55cm M = 55-59cm L = 59-63cm Weight 19 oz/ 550grams Smith Liberty MIPS Helmet