Reebok Easy Tone Review - Does it boost your butt?

http://kblog.lunchboxbunch.com/2009/11/reebok-easytone-better-butt-or-lotta.html

This review is the best I could find. Use them wisely. Get them on sale. Don't step on a tack or wear them outside to run on or on a treadmill or for lateral movement. Good for people who stand on their feet all day to strengthen smaller muscles.

Sports Authority offers TENNIS SHOE INSURANCE!!  Cool!!!! This is where I would buy them from since you may not like them, or deflate them accidentally, since they are so expensive.