Mine can do that and that's why I like to keep my iPad mini in the front pocket. It prevents the sinking.View attachment 3673054 I paid full for the bag last Wednesday and my SA called that it's in boutique on Saturday. I was surprised as she told me I might have to wait a month. Here is my baby, collected on Monday and have been using everyday. However the middle seems sunk in. Does it happens to yours? I'm 1.6m btw.