ISACORD is a polyester continuous filament. Its' brilliance is comparable to that of a rayon thread. That brilliance is obtained due to a modification in the structure of the fiber.ISACORD is abrasion resistant, embroideries stitched with Isacord stay beautiful wash after wash, the colour will resist to boiling water, light and chlorine.ISACORD thread is the perfect thread for industry treated textiles such as work clothes, jeans, ready to wear and leather. These garments can be treated with hypochlorite or stone washed without damage to the thread.*Shades of colour may vary from one computer screen to another, for exact colour please refer to the Isacord colour chart with thread samples now available for order.