Cushioning Technology: WaveSpring--Provides cushioning and energy return while centering the foot during the stride. According to Spira, an independent laboratory study conducted at Michigan State University confirmed the benefits of WaveSpring technology. The test revealed that WaveSpring provides a superior blend of cushioning through deflection of the steel alloy spring midsole system combined with efficient energy return for optimal performance.
Pronation: Medial Midsole Post--A stabilizing device made from a dense material, usually found on the medial side of a shoe to control the maximum angle of over-pronation.
Outsole: High-Abrasion Rubber --High-abrasion rubber oustole offers durability.
Model Number: SRG512
Classification: Motion Control/Stability

Product Description
The women's Spira Genesis II Stability running shoe combines stability and cushioning for a great performing shoe. WaveSpring technology provides cushioning and energy return while centering your foot during the stride. It's designed to return energy with every step and won't break down. The midsole medial post works with the upper supportive design to help correct overpronation.

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