2×2 Twill Carbon Fiber Fabric/Cloth 50″ 6k 6oz. This fabric is made from Hexcel IM8 Intermediate Modulus Yarn – This fabric has a width of 50″, tow size of 6k and is woven in a 2×2 Twill weave. This 6k IM8 Carbon Yarn is a smaller looking yarn vs a normal 6k Carbon yarn. Due to the size of the fiber, this 6k fabric gives the appearance of a 3k. This material has a very unique visual appearance. Thickness .009″. This fabric is great for structural buildup and will yield a much stiffer product than a standard modulus 205 gsm fabric.