Our new premium charge/sync cables are built with more durable materials and long-life connectors. Long-life materials - Super-durable cable jackets covered in nylon braiding won't kink, while aluminum encases the Lightning and USB connectors to protect them from physical stresses. Torture tested, ultra durable - Our Premium cables are subjected to bend testing of 10,000 cycles and environmental testing. The result is a premium cable that's built for longer, more reliable life.