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 .