My daughter is 7 years old, a very energetic girl. I want to give her a special Christmas gift. I plan to give her a yoga mat, but I afraid it is too thin to protect her. How to select an inflatable air track? : Imesbean This article introduces the inflatable air track, maybe it is a good choice. But I don't know what width, length and thickness I should select. The inflatable air track is not for professional training. Is an inflatable air track with 3.3 width, 10ft length, and 4in thickness OK for a girl?