Recycled eco-fleece shell & lining Primaloft® insulation Patented behind-the-head design Adjustable click-to-fit frames Fully collapsible Color: Magenta Purple -- Soft thermal fleece shell with recycled eco-fleece lining and Primaloft® insulation. Patented behind-the-head design fits comfortably over your ears and allows them to be worn with other headwear, glasses, and head protection. Adjustable click-to-fit frames ensure an easy, comfortable fit on a wide variety of head sizes. They also fully collapse for easy storage in bag, purse or briefcase. *Example of collapsible frame seen in the picture above.