This vest is knitted from renew-wool, which is made by shredding scraps left over from the manufacturing process of pressed wool products and turning them into new yarn. The yarn is shaped to create a rich texture and a light, comfortable feel. The large ribbing is impressive. I bought it, but I haven't had a chance to wear it, so I'm selling it. Size: 【M】Length: 49cm, Width: 59cm, Hem Width: 58cm, Shoulder Width: 47cm Material: 100% Wool Country of Origin: Japan Item No.: E233K100 Thank you for looking.