From the manufacturer

The Ikon Nova is a lightweight and comfortable climbing and mountaineering helmet that uses hybrid construction to combine the benefits of hardshell helmets with the comfort and protection of in-mold construction. The ABS outer shell features additional molding to make it stronger and more rigid where it integrates with the vent holes and edges. Soft inner padding combines with 18 side and rear vent openings for exceptional comfort and breathability. The ventilation holes are specifically positioned and sized for maximum breathability without compromising protection. The rear dial adjustment system is easy to operate with one hand and tucks into the helmet so it is protected inside the pack. The Ikon Nova has additional space between the adjustment dial and the helmet to be able to accommodate longer hair. The headlamp holder is designed to be able to attach a headlamp without removing the helmet with two ergonomic front clips and a rear elastic keeper.

Features

• Women's specific version of the Ikon helmet with extra space between the adjustment dial and the helmet for longer hair
• Lightweight and comfortable climbing and mountaineering helmet featuring hybrid construction with the benefits of hardshell and in-mold construction. 
• Molded inner structure combines EPP main structure with an EPS top for all-around protection
• The ABS outer shell features additional molding to make it stronger and more rigid where it integrates with the vent holes and edges. 
• 18 side and rear vent holes are positioned for maximum breathability without compromising protection
• Rear dial adjustment system is easy to operate with one hand and tucks into the helmet so it is protected inside the pack 
• Headlamp holder with two ergonomic front clips and a rear elastic keeper can be used while wearing the helmet
• Available in two sizes with a broad fit range

Specifications

• Sizes: 48-58cm, 57-63cm
• Weight: 280g, 300g