PU with adidas adiPRENE highly shockabsorbent cushioning protects the heel at impact while PU with adidas adiPRENE resilient and flexible forefoot cushioning provides a responsive dynamic pushoff. Rockport Kourt Men S Dark. TruWALK Architecture provides a natural full range of foot motion from shock absorption at heel strike to forefoot flexibility during push off. Kourt Dark. Upper is easy to clean and maintain to extend product life.