A lightweight and low-profile design inspired by the classic skate-style helmet. The MOD1 is available in three fits (Standard, Asian, and Youth) and delivers simplicity with premium functionality for wherever your on-mountain adventures take you. True Asian Fit: Not just a scaled version of standard fit, this helmet sizing was built specifically for Asian Fit. Small (53-57cm) / Medium (57-61cm) / Large (61-65cm) ASTM F2040 and CE