Contoured open-cell polyurethane footbeds

The lens is structurally supported by a durable polycarbonate sub-frame

58% Cotton/40% Polyester/2% Spandex

55% cotton/45% polyester blend: Carbon Heather

5 barrel metal hinges

Washed Duck Sherpa-Lined Sierra Jacket, Black Shirt Size:3XL Contoured open-cell polyurethane footbedsDescription Engineered For High Warmth in Severely Cold Conditions. See Technology section below for more details. Features 12 ounce, 100% ringspun cotton washed duck Sherpa lined body for warmth; Quilted nylon sleeve lining for warmth and easy on and off Attached sherpa lined hood with hidden drawcord Pleated elbows for ease of movement Internal rib knit storm cuffs help keep out the cold Pleated bi swing back for extra stretch across the shoulders