I decided to buy the Skechers shoes that are called Shape-ups, we have a skecher store right by my house, I love all their shoes and have worn them for years! I got my shape-ups on monday and have worn them all week, my thighs and butt muscles are screaming! Oh these babies work! I have been doing 1/2 hour on the treadmill each morning and the shoes really add to the workout! I highly recommend them, they are very comfortable and cushy and cute! And they add about 2 inches to my height, so that is another plus since I am only 5 foot 1 inch! They cost 99.00, and are worth every penny!