Spira Footwear

The Stinger Competition is Spira's newest high performance lightweight road racing flat with an exceptional amount of cushioning for such a lightweight shoe. With two WaveSprings™ in the forefoot and one WaveSpring™ in the heel, the technology provides maximum energy efficiency for racing a 5k to marathon distances. The shoe is designed for the runner who is biomechanically efficient and wants to run fast without adding the stress and fatigue associated with lightweight racing flats.