The 517 delivers a classic fit that's comfortable and versatile. Athlete-inspired shoe features ABZORB cushioning and a NB Memory Sole Comfort Insert to support your daily routine. Plus, the premium leather/mesh upper means you'll get quality style that's durable. The 517 trainer means you get comfort and support while you work hard. ABZORB cushioning in the midfoot provides excellent shock absorption while QUIX technology provides support during side-to-side movements.