Heavy polyfill insulation throughout, brushed tricot body lining and nylon sleeve lining, #10 Brass YKK 2-way zipper, Corduroy collar with snaps for optional hood (Style# 4500), Embroidery access zipper that allows customization to right / left chest and full back, Recessed rib knit cuffs, 2 Large inside pockets, No back seams, Shoulder gussets and pleated sleeves for articulated fit