http://www.skechers.com/info/shape_ups_5_questions
5. Can I run, use the treadmill and elliptical
machines, do aerobics, climb stairs and hills,
and/or drive in my Shape-ups?
Shape-ups are specifically designed for walking, and using them regularly during your daily activities is the best way to get an easy workout. However, you can complement your Shape-ups workout by using them on hills, treadmills, elliptical machines, and low-impact gym activities such as weight training. Once you get used to wearing your Shape-ups, they're also fine for driving. Since the midsole and outsole are designed for low-impact activity, we don't recommend that you run or do high-impact aerobics in them.