The Phone Drybag by Topeak is designed to work with smartphones with a 6.9" screen size. It is made of waterproof material that is sonically welded and seam sealed to protect your phone from weather, mud, and water. This drybag is perfect for keeping your phone easily accessible during rides or using it as a GPS.The phone drybag features an enlarged camera opening to accommodate larger smartphone lenses. It has a foam body for added protection and a clear touch window for viewing your phone's display. The integrated QuickClick® mounting system allows you to mount or remove the drybag in seconds.This drybag is compatible with smartphones that are less than 16.5 x 7.8 x 0.9cm in size. It weighs 52.3g (bag) and 9.3g (F55), with dimensions of 17.3 x 9.4 x 1.3cm.Please note that you should not store your phone in the drybag for extended periods in direct sunlight or hot environments. Extended use of your phone in the drybag in direct sunlight may cause it to overheat and stop working properly. If this happens, remove your iPhone from the drybag and place it in a cooler environment. Allow it to cool completely before using it again.