. APL Athletic Propulsion Labs' sneakers are anatomically designed for a variety of high-intensity activities. , This best-selling 'Phantom' pair has 'TechLoom' uppers with four-way stretch and a 3D grid pattern for support, Neoprene tongues and integrated collars provide a sock-like fit, Propelium® technology delivers responsive cushioning with maximum energy return, Feather-inspired rubber outsoles have flex grooves for traction, 8mm heel-to-toe drop encourages a natural stride
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