The sole of the Zoom Pegasus is new for 2010. Although similar to the sole in the Pegasus 25 and 26, the heel features a Nike Air unit to absorb the initial contact the heel makes with the ground. The midsole is now made out of Cushlon as opposed to Phylon, this is a material developed by Nike for shock absorption. What makes the material unique is that it returns to it's original shape after every step. Under the heel is a crash pad to absorb the impact of the foot landing, the location of which varies depending on whether the shoe is for a man or woman.
Under the arch of the shoe is a piece of TPU (a plastic material), which is known as a shank. This connects the heel of the sole with the forefoot to provide stability, help control pronation, and help keep the foot in a natural position. The forefoot also features deep flex grooves for stability. These too are in various locations depending on what gender the shoe is designed for. Finally, the outsole is made of carbon rubber for traction and protection of the shoes.
Not much has changed in the midsole of the latest Nike Zoom Pegasus 27 midsole. Nike instead chose to improve the fit of the upper. The front of the shoe is made from a seamless, semi- bootie to reduce foot chafing. Synthetic leather overlays have been modified around the toebox and arch to keep a runner's foot in place.
Crooked Tongues keeps the Nike fire burning with a new Pegasus 89 pre-order. “Part of the series that started in ‘82, the Pegasus was a flagship runner in its many forms over the ’80s and early ’90s. This retro captures the shoe in all its ‘89 splendour. Much lusted over prior to retro, the material mix and silhouette is evocative of an era. This is a great chapter in Nike’s running history.”
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