Chicago Isaac Details specifications * Weight (oz): 9.2 * Drop: 8 * Support: Neutral * Certified Vegan * Sustainably Constructed Upper * Anatomically designed air-mesh * Plush, seamless anti-friction linings * Perforated tongue for breathability * Multi-positional lacing system * Upper constructed of 100% recycled materials Sole Technology * Energized NRG+™ Foam * XPS+ Pebax® plating system * Split-lug Action Reaction Technology™ * Hytrel® foam footbed Learn More About Newton's Technology What Makes Newton Unique? Advanced Innovation The Isaac 2 features our innovative Split-Lug Action Reaction Technology™ to maximize rebound for a softer, smoother, more energetic ride. The 8 independent flex-lugs compress into the midsole and spring back like a trampoline, reducing impact and returning energy with each stride. Elevated Fit Designed for total comfort, the seamless Adaptive-Fit Air Mesh, the upper molds to the shape of your foot and lets air flow freely. And features like anti-friction lining and multi-positional lacing system create the comfort and security to make it feel like it was built just for you. Action/Reaction Technology TM The magic powering Newton Running shoes is the revolutionary full foot Action/Reaction Technology system. The lugs on the sole compress and rebound as you move through each stride, creating a responsive, trampoline-like cushioning system tuned for the versatility your active lifestyle needs .
