The Glycerin 4 from Brooks is a technological powerhouse featuring an explosive combination of e-1 HydroFlow ST-XL and Substance 257 engineered to provide unrivaled cushioning. A thermo-regulating silver-embedded HVAC Sockliner ensures a comfortable thermally balanced footbed. With just the right amount of support for neutral to mild pronators the result is a a wonderfully smooth and stable ride. Additional Details BRAND : BROOKS
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