Shell: knit, 92% polyester, 8% spandex; Lining: knit, 100% polyester; Insulation: fiberfill 100% polyester; Binding: knit, 90 nylon, 10% spandex; Behind the head design; Adjustable click-to-fit frames; Fully collapsible; Soft thermal fleece shell; Primaloft insulation; Recycled eco-fleece lining