BUILT STRONG Not just any charge cable, Dura Tek was forged from superior quality materials for ultimate durability. Kevlar fibers reinforce the inner wiring for added strength, abrasion-resistant nylon forms a tough outer jacket, & highly flexible insulation minimizes damage from friction. The strength created by these resilient ingredients is further enhanced by smart design details to reinforce the cable at its stress points. This ensures the finished product can withstand even the most demanding routines, & perform above & beyond expectation to deliver a cable that borders on indestructible. MADE FOR: micro-USB compatible devices Built with Du Pont™ Kevlar One of the key ingredients of Dura Tek's secret strength is Kevlar. This super-strong fiber is used the world over for everything from bulletproof vests & crash helmets to surfboards & extreme sports gear. Strong Kevlar strands are built into the cable adding ultimate strength. Able to flex without stretching, these fibers provide structure to keep the wires inside from damage. DOUBLE BRAIDED NYLON The external cable jacket is made from a premium & hard-wearing nylon. Double braiding is a technique used in rope making & gives maximum strength & added resilience. FLEXIBLE INSULATION Inside the cable, many wires co-exist to provide better functionality & connectivity. Insulation protects the wires from damage as the cable bends & flexes, but some can cause stiffness, affecting the overall suppleness of the cable. The highly flexible insulation within Dura Tek minimizes friction, allowing the cable to bend easily & the wires within to move without damage. BETTER STRAIN RELIEF The strain relief--where the cable joins the connector head--is longer than that found on other cables. Made from flexible TPE, this added length & flexibility helps to absorb stress & reinforce the juncture between the cable & the connector head to prevent separation. Proven in testing to withstand 5000+ cycles where the cable is bent to 180-degrees, this cable is highly resistant to splitting & breakage. Not just flexible, TPE is also smooth, tactile & more environmentally-friendly than the standard PVC.