The Stinger 2 has been a shoe three years in the making. It is an ultra lightweight running/racing shoe with three re-engineered springs. The WaveSpring® technology provides a high level of responsiveness and protection against fatigue and stress while combining a level of cushioning and responsiveness that is difficult to achieve for a shoe in this weight category--weighing a mere 7.8 oz*. The foot-bed may be removed to accommodate orthotics. We believe that most anyone can achieve a 15 second per mile personal best from any distance from the 5k to the marathon!

The Spira Women's Stinger 2 racing flat fits true to size.