Spun Fiber Polyester

The unique sewing thread for professionals, DURAK Poly-Jet.

They are sewing threads those are derived from doubling and spinning of cotton type spinned 100% staple fiber polyester threads and are processed from specific finishing treatments.

Thanks to the cooling impacts for needle of the fibrous surfaces of these threads, they perform well, their dimensional stabilities are fine. Their abrasion-proof is rather high relative to cotton thread.

They are usually preferred for stitches of denim and blue-jean; the thinner ones are, however, preferred for the stitches of underwear and shirts.