Belkin, 4', black, mixit duratek lightning to usb cable, forged from superior quality materials for ultimate durability, aramid fibers reinforce the inner wiring for added strength, abrasion resistant nylon forms a tough outer jacket & highly flexible insulation minimizes damage from friction, resilient ingredients is further enhanced by smart design details to reinforce the cable at its stress points, ensures it can withstand even the most demanding routines.