Improvements in athletic footwear have led to shoes that help athletes run faster and jump higher. They also look cool.
Andy Roddick - Tennis, United States
Image by Clive Brunskill / Getty Images
Jessica Ennis - Heptathlon, Great Britain
Right before the high jump.
Image by KAI PFAFFENBACH / Reuters
Kevin Love - Basketball, United States
Image by Jamie Squire / Getty Images
Ana Dulce Felix - Marathon, Portugal
Image by Streeter Lecka / Getty Images
