Carbon Fiber/Blue Kevlar Fabric/Cloth 50" 3k 5.5oz 2x2 Twill. The material is a hybrid of carbon fiber and Kevlar. This fabric has a width of 50", tow size of 3k and is woven in a 2x2 twill weave. This is the most widely used pattern in the automotive industry. This material was woven by reputable weavers across the US, and their long lasting presence in the composite industry will ensure you receive a quality material.