Run, race and workout in our most popular performance and lightweight neutral shoe with superior cushioning, shock absorption and energy return. The Spira® Stinger XLT is a performance trainer that is also an ideal race day shoe for runners who need the support of a training shoe, with the lightweight responsive qualities of a racing shoe. The trainer is extremely well cushioned and helps to maximize running performance and reduce fatigue. The two independent fore foot and one heel WaveSpring® are low profile and lightweight and are made of stainless steel to maximize cushioning and resiliency. This style is popular with elite athletes, recreational runners and weekend warriors alike.