Lightweight, fluid and flexible, the Zealot ISO 3 delivers Saucony's very best running innovations into a streamlined, energized package. The 3mm EVERUN? topsole construction provides an energized ride, while the TRI-FLEX outsole gives just enough flexibility and freedom of movement with every stride.Overview?Successor to the Zealot ISO 2?Brand new engineered mesh brings a more dynamic, adaptable fit?Molded heel collar provides a lockdown heel fit?New ISOFIT design focuses on a dynamic, adaptive midfoot fit?EVERUN? topsole construction provides continuous cushioning from heel strike to toe-off?New TRI-FLEX outsole design focuses on forefoot flexibility and a smooth, flowing transitionSpecs?Shoe Category: Neutral?Pronation: Neutral?Cushion: Plush?Construction Type: Natural Motion?Surface: Road, Track?Arch: High, Normal (mid)?Water Resistant: No?Waterproof: No?Offset: 4mm?Heel Stack Height: 26?Forefoot Stack Height: 22?Weight: 7.3 oz. | 207 g.