Hard-shell version of the innovative Stealth helmet, for those who favour durability over pure lightness. The best solidity through the Stealth multifaceted design, which increases the rigidity of the shell and allows thinner thickness. No metal parts, which could dangerous in case of an impact. Inner EPS shell for absorption, with an outer hard ABS shell which protects the head and nape. One size (53-61) that can be adjusted to fit once the helmet is on The adjustment system tucks into the helmet for compact storage in your pack or haul bag. Four Headlamp clips.