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. Lifetime Guarantee Our Premium Charge Sync Cable will connect, charge and sync your devices for as long as you own them. If it fails, we’ll replace it. No questions asked.