Petzl Hat Liner

Liner is a breathable cap for wicking perspiration and drying quickly. The seamless fitted design makes it comfortable to
wear under a helmet, without getting in the way.--Breathable membrane allows perspiration to be wicked and to dry quickly
-Designed for wearing under a helmet: seamless fitted design makes it very comfortable to wear under a helmet
-Machine washable up to 40 ° C
-Available in two sizes

Specification
-Weight: 15g
-Material(s): polyester, spandex

Petzl professional line