The EZQuest DuraGuard USB Type-A to Type-C Cable is reinforced with Kevlar core, nylon braided outer sheath, strain relief, and strong aluminum connector housings. Kevlar wraps around the outer cable as well as through the center of the core of each inner cable creating a very strong and durable design. This cable has been engineered for extreme durability and heavy everyday use that can withstand any twist, tug, or tangle.