An important winter product.

Don`t know if this blue bag made for insulating smart telephones is an important product to you. It is to me. I have been out in cold weather some times carrying the phone in my pocket. When it`s really cold the battery energy drops to zero within a very short time. I must be sure the phone will work in case I would need to call for emergency help on a ski trip alone in cold weather. I never go skiing in cold weather without my phone in the bag. You might put your phone in a knitted wool glove or mitten if you don`t find this bag.