Comfortable, lightweight thermal helmet liner for all-day use with all JSP Evolution safety helmets. Features stretch material for a tight fit, to provide warmth and protection from cold environments, and deep edges designed to cover the entire ear. Avoids the need to wear incompatible, dangerous alternatives such as hoodies underneath the helmet. Machine washable at 30°C for hygiene purposes. Cotton Construction Compatible with all JSP Safety Helmets Lightweight Deep Edges Designed to Cover Ears Cotton Construction Compatible with all JSP Safety Helmets Lightweight Deep Edges Designed to Cover Ears