The 623v3 takes all-day comfort to an all-new level. ABZORB® cushioning in the heel capsule, an IMEVA footbed and supportive collar foam make this shoe your new core training partner. Our most athletic classic training style. Redesigned for maximum comfort, the 623v3 features reinforced collar foam and a larger ABZORB® heel capsule that cradles your foot while offering reliable breathability, durability and versatility.