PCP GROUP-Sew-In Woven Hair Canvas. Traditionally used in tailoring, hair canvas has a wonderful drape which is ideal for shaping in garment construction. It is made of fine woven fibers and is known for great hand especially when used on the bias and is a classic for garment construction. This package contains one 25yd bolt of 22in canvas constructed of 54% polyester/27% hair/12% cotton/7% wool. Made in USA.