Backed by 30+ years of experience in the custom foot orthotic industry, this durable and lightweight insole was designed to maximize the performance of your running shoes while minimizing your risk of overuse injuries during training, runs, and marathons.
THE BEST ATHLETES TRAIN THE SMARTEST.
STEP YOUR GAME UP TODAY.
ENDORSED BY COACH RACHEL
“I was running with them at a faster pace than I was used to without any pain or additional fatigue, so I was sold. I did indeed wear them for the [Chicago] marathon, and while it wasn’t my fastest time, my feet felt perfectly fine in the days after the race. After distance races, including both half- and full-marathons, the arches of my feet are pretty achy for a couple of days. I did not experience that after the Chicago Marathon, and the only different thing was [Zelus] insoles.”
The SmartCells Impact
Our patented SmartCells form a layer of zingy spring-like cushioning under your feet. They are designed to absorb up to 20% of impact force and return the energy back to you — full propulsion!