Ultra warm 100% Woolrich® wool blend shell Primaloft® insulation Recycled eco-fleece lining Patented behind-the-head design Adjustable click-to-fit frames for a variety of head sizes Compatible with earbuds, glasses, hats & most bike helmets Fits discreetly under long hair Fully collapsible for easy storage in a pocket, purse, briefcase or bag Color: Houndstooth Black & Red Style: 31709-970