Avia - A2015m (White/Charcoal Grey/Crimson Red) - Men's: DCS(R) Plus Dual Cantilever(R) System with caged air chambers in heel and a forefoot air chamber, which maximizes stability and cushioning with two interacting dual Cantilever(R) units. These units act like a trampoline to soften impact, stabilize the heel, and return energy to the stride. Anatomical Cradle which improves both motion control and shock absorption by mimicking the bottom of your heel in your midsole. Also reduces twisting on both ankles and knees. Lightweight synthetic upper and mesh with reflective features. Removable molded Duropontex sockliner and compression molded EVA midsole. Solid rubber outsole with vented TPU shank.