This cover is water Proof: fully submersible to 6.6 feet (2 meters) for 30 minutes, Dirt Proof: totally sealed from dirt and dust, Snow Proof:completely closed to snow and ice and Drop Proof: Survives drops from up to 6.6 feet (2 meters). Nevertheless it's slim with a lightweight: combination with aerial Aluminum alloy + corning gorilla glass(temper glass) + TPU + nano waterproof layer + acoustic transmission waterproof film, it weighs 135g only. It allows complete access to Touch ID and every button, control and port. The Ultra-flat screen protection ensures full screen functionality with fully sealed design to protect from even minor dust particles. The crystal clear anti-reflective optical glass lens is for high quality images,all microphone and speaker vents are waterproof,featuring clear voice clarity technology.