Foot experts warn that the unnatural slope of stilettos puts unnecessary strain on feet and lower leg muscles. Footwear brands like Fit Flop, Reebok and Skechers claim that the specialized midsoles in their toning shoes strengthen leg muscles and improve posture, which could help prevent heel-related injuries.
Women's Snugger boot, Fit Flop, $124.95; at Amazon.com.
Jump Start walking shoe, Skechers, $104.95; at Amazon.com.
Walkstar III, Fit Flop, $59.90; at Zappos.com.Read MoreLess