Description of K2 Moxie Helmet '08 - Women's Keep your most precious asset safe and secure so you can hit the mountain forever. Features: Active Matrix Ventilation Adjustable Fit System New Stow-Away Integrated Posts for Helmet and Goggle systems Baseline ACS (compatible) Washable Head Liner 2 Season Removable Ear Liners Pony Port Sizes: Small 50-53 cm, Med 53-55cm, Large 55-57 cm, Xlarge 57-59 cm