Durable TPU material and Twist Seal System provide a user-friendly but absolutely comprehensive protection for your ID / credit cards, cash, MP3, phones, keys, or other accessories from water, dust, dirt sand and snow.n6.7 x 3.9 inches(clear window 5.8 x 3.1 inches), fits all smartphones up to 6.5u0026#34;. You can take or make a call any time, anywhere. If you go boating or hiking Aquafree DryBag may even prove to be a lifesaver.nCrystal clear window on both front and back sides leads to full touch screen and button control, maintains taking pictures / videos and checking messages or whatever functionality.nIPX8 certified to 100 feet[30 meters], allows you to submerge your device up to 100 feet deep without worrying about water damage.nAquafree DryBag owns utility model patent, and always treasures its usersu0026#39; benefit.n*Before use it, please test and check whether there is a damage, in particular the surrounding sealing part. Make sure you test yours in a basin before you launch Aquafree DryBag into the water. *Applicable to the temperature about 30℃ and couldn't use Aquafree DryBag in the hot springs. *Do remember to wipe up the water after use, and lay downside of the Aquafree DryBag to prevent the water being go inside which may result in the damage of your phone. *Fingerprint recognition such as Apple's Touch ID doesn't work through the Aquafree DryBag - you have to enter your passcode. *Extended use of your smartphone in Aquafree DryBag in direct sunlight may cause the smartphone to overheat and cease to work properly. If this occurs, remove your smartphone from Aquafree DryBag and move it to a cooler environment. Allow it to cool completely before resuming use.