• Surefit™ Thermal Helmet Liner Extra Visibility Orange - Medium/Large • The SureFit™ Thermal Helmet Liner is fully approved to be worn with all JSP Evolution® Safety Helmets • It prevents workers from wearing incompatible and dangerous alternatives such as hoodies underneath their helmets • It provides all day comfort and warmth • Thermal insulation - The SureFit™ Thermal Helmet Liner provides the wearer with warmth and protection from cold environments • The deep edges are designed to cover the entire ear • Fully compatible - The SureFit™ Thermal Helmet Liner is compatible with all JSP safety helmets • The stretchy material provides a nice tight fit for minimal interference and maximum comfort and warmth Convenient & Hygienic The SureFit™ Thermal Helmet Liner is lightweight for all day comfort and is also machine washable at 30°C for hygiene purposes.