I wanted a sports mats that makes them comfortable abdominal exercises for my back. Recommended by a friend, I chose this rug and much good has taken me. It is very comfortable! His only default, but you can not have everything ... is that it is thick. And rolled, it takes up space. Do not imagine being able to carry this rug to your yoga class, it is too cumbersome. For a sedentary use, it is perfect.