The most tech Airblaster balaclava to date, our new Pro Clava utilizes ergonomic hood paneling for a highly technical layering fit, an adjustable face gaiter for customized facial fit, and 270gsm AirTech 3D-Eco‚Ñ¢ microfleece fabric throughout. 4-way stretch AirTech 3D-Eco microfleece has areas of high loft for maximum warmth, as well as areas of low loft to facilitate moisture transport and maximize breathability, all in a lightweight package.