Denim jacket with blanket lining. The outer fabric is WORKERS' standard 13.75oz (American cotton) selvage denim. The lining is made from vintage OSHKOSH, which was disassembled and sent to an inspection agency for analysis. Based on the results, the warp is 40s count yarn, and the weft is recycled wool (70% wool, 22% polyester, 11% cotton, 2% acrylic, 2% nylon). Compared to WORKERS' usual unlined denim jackets, this jacket is about one size larger in the horizontal direction. This is necessary because the lining adds bulk. If you usually wear a size 38 in WORKERS, choose a size 38 for this blanket-lined jacket as well. If you plan to wear a sweatshirt underneath, choose a thin one. Shirts or thick long-sleeved T-shirts are easier to pair with it. Materials: Outer fabric/100% cotton, Lining/Recycled wool (70% wool, 22% polyester, 11% cotton, 2% acrylic, 2% nylon) Size/Shoulder Width/Body Width/Length/Sleeve Length (cm) 42/52/66.5/63/60.5 Worn 2-3 times after purchasing new.