Our TPU Guide Waterproof Phone Cases are a slim yet robust solution for protecting and using your phone in any conditions. RF welded Thermoplastic Polyurethane (TPU) and the zip lock, triple-roll hook-and-loop fastener keep this soft case both watertight and slim. The TPU is PVC free, strong, flexible, durable, UV and extreme cold resistant. Die-cut attachment points round out this tough little package. Features Meets IPX8 testing standards - waterproof at 10 meters for 1 hour Low profile design feels great in your hand High strength TPU construction is abrasion & UV resistant; will not crack in extreme cold RF Welded seams for strength and waterproof construction 0.15mm optic grade and touch compatible TPU screen and camera port Size Guide Smartphone: 5.8" x 3.3" Large Smartphone: 6.7" x 3.6"