The Spira Stinger XLT Women is a high performance trainer and is an ideal race day shoe for the majority of runners who need the support of a training shoe, with the lightweight responsive qualities of a racing flat. This women's running shoe shares many of the same characteristics as the Stinger Racing Flat. The two independent forefoot and one heel WaveSpring are low profile, lightweight springs made of stainless steel to maximize cushioning and resiliency. This Spira running sneaker is extremely well cushioned, maximizes racing performance, and reduces fatigue. Stay ahead in the Spira Stinger XLT Women.