Lighter feel, added cushion, all the support. The Caldera 3 is quick and comfortable on and off the trails. The TrailTack Sticky Traction provides a nice grip on different types of terrain to give you the most out of your trailrunning or walking. The updated BioMoGo DNA Midsole was redesigned to adapt based on how much force is applied and provides cushioning when needed the most. The bigger toe box gives plenty of room for those who need it. Flexible and quick to accommodate splaying and swelling over longer mileage.