AfterPay Available - Energise your daily training with the Nike Air Zoom Pegasus 39. Continuing to fuel your stride every step of the way, the Nike React Foam midsole now features a double Zoom Air Unit construction for a more powerful toe-off and enhanced rebound. The integrated Flywire technology in the midfoot band locks you in place, whilst it's lightweight engineered mesh protects the foot in a strong yet breathable enclosure to grant a comfortable and secure running experience.