Preowned good clean condition no flaws from a non smoking home.Isaac is a highly cushioned, highly versatile shoe. The NRG midsole sole foam is a blend of tpe for that highly cushioned and responsive experience and a softer EVA foam to maximize durability. Along with advanced foam, Isaac utilizes the patented Action-Reaction forefoot technology for maximum responsiveness, a full length Pebax plate for additional spring and impact diffusion, and a rockered geometry for a smooth roll through the gate cycle. This shoe is for those looking for a comfortable daily walk about shoe up to the Ultra distance and everything in between and at any pace.- Support Type: Neutral / Stability- Cushioning: 29mm heel, 21mm forefoot. NRG Foam (TPE/EVA Blend)- Plate: Full length Bio Based Pebax Plate- Upper: Engineered mesh and laces made from 100% recycled plastics. Plush tongue with nice lock down experience.Rockered midsole shape for smooth roll through gate cycle.- Outsole: NEWLY designed Forefoot action-reaction split lugs. Provides a trampoline like experience under foot without feeling the lugs but while providing great step in comfort.Heel Stack: 29mmForefoot Stack: 21mmHeel-Toe Offset: 8mm2lbs shipping cost is based in zip code and weight.