GoFit"s 2" x 6" Aerobic Exercise Mat is perfect for aerobic exercise workouts that include floor exercises such as sit ups, crunches, leg lifts or any exercise or floor routines in which you may be on your knees or back. The Aerobic Exercise Mat folds for easy storage. The mat has a nonporous surface that is easily cleaned with a damp towel. Sandwiched in between the nonporous surface is two inches of open cell foam padding for added comfort.