With the Nike Women's Air Zoom Pegasus 34 Running Shoe, you stay light, fast, and properly supported whether you're trucking through fartlek training or simply crushing a blood-pumping, fast one-miler on your lunch break. Designed to offer you a barely there fit and feel, the Pegasus 34 returns to the fast-and-light lineup--with minimal changes to the shoe, except for a few more spunky color options to choose from. And in typical Nike fashion, the Pegasus is constructed with a breathable seamless upper that not only prevents hot spots and chafing, but also promotes a sock-like fit and feel. A Cushlon midsole attenuates shock, enhances energy return, and provides a spring-inspired sensation underfoot, propelling you through your transitions rather than obstructing them. Additionally, a heel-located Zoom Air unit is designed as such that it supports your natural range of motion and bolsters your defense against impacts on hard surfaces. And, last but not least, the abrasion-resistant outsole maintains subtle traction, while the flex grooves promote a natural, comfortable movement that won't obstruct the natural flex of the tendons in your foot.