Workman WMB Cardboard Cardigan Men's L Beige Item No. 1435 Color Code 003 Only tried on, in excellent condition. Measurements (flat lay): Length: 72 cm Width: 56 cm "Cardboard knit" refers to fabric made by layering two pieces of fabric, the outer and inner layers, and connecting them with a middle yarn. It's called "cardboard knit" because the structure of the knit resembles the cardboard used for packaging. It has a firm, structured feel and can maintain a three-dimensional silhouette even without internal support, making it suitable for various clothing designs.