13.5oz Rigid Denim woven with 2 types of yarn. No. 5 denim is plant dyed with persimmon tannins and reinforced with indigo dyed sashiko thread. Over time, the fade of the indigo dyed sashiko thread contrasts with the kakishibu dyed denim, creating a personalized aging effect. Living up to its name, Century Denim is extremely durable, built to last a lifetime. *Please note that the back design differs depending on the size. Sizes 5 and 6 have a T-shaped split back design, while size 7 has a P-shaped split back design. 100% Cotton Made In Japan Product Code: KAP-302, KAP-302A, KAP-302B