There's also limited cushioning for running. You have to really be into the whole barefoot thing to get into these. Under Armour and the Rock, king of the gym, have been working on shoes that ...

(See the craze for barefoot running.) Currently, barefoot shoes seem to be making something of a comeback: Balenciaga, known for its ability to start a footwear trend (hello, ugly clodhopper ...

2 Department of Physiology, Australian Institute of Sport, Canberra, Australian Capital Territory, Australia 3 Department of Movement Science, Biomechanics, Australian Institute of Sport, Canberra, ...