Newton Sir Isaac S Stability Running Shoes Blue/Silver Men。Newton Running Sir Isaac S trainers / sneakers. Designed specifically for stability and form improvement, the Sir Isaac is the perfect entry point for runners looking to transition to a more natural midfoot/forefoot strike. Model: Sir Isaac S (Stability) Size: Men\'s 12.5 Colorway: Vibrant Blue / Metallic Silver / Yellow accents Condition: Pre-owned good condition - lots of life left Technology: Patented Action/Reaction™ technology in the forefoot for energy return. Upper: Highly breathable closed mesh with lightweight ergonomic support strapping. Lacing: Slip-proof laces with heel-securing double eyelets for a locked-in fit. Ships fast! Newton Running, Stability Shoes, Marathon, Triathlon, IronMan, Zero Drop, Natural Running, Trainers, Men\'s Activewear