I3C Waterproof Shockproof Metal Aluminum Gorilla Glass Case for Apple iPhone 6 4.7 inch - Silver 1.The water-proof performance is better.The phone case can be dived in two-meter water for 30 minutes.It passed the IP68 water proofing test,which can ensure that water will not get into your iPhone.You can play with water in summer with your iPhone and Gundam Armor. 2.The excellent sealing design can prevent dust and sand get in to your phone.Gundam Phone Case can protect your phone as a new one no matter how terrible the environment is.Such as,construction site,sand site,survival in outside etc. 3.The unique three-layer design can keep your phone from the harming of low temperature.Cell phone can easily breaks down in the environment of low temperature.The usage of Gundam phone case can,to great extent,reduce the harm brought by low temperature to phone battery. 4.The phone case is of shock proofing at 2 meters.You can use your phone at ease and do not need to worry that your phone will be damaged.Your phone will be protect safely with the four independent shock-proof angles and 26 screws.The phone case will become more tight and more robust.Thus it can reduce the damage percentage of your phone to great extent. 5.Material: Aerometal + Gorilla glass + TPU + Nano waterproof layer + Acoustic transmission waterproof membrane