GreenStride™ technology provides one of the most eco-conscious and comfortable experiences that we have ever invented. Comfort in most shoes is delivered through a soft foam material called EVA which is typically made from petroleum-based ingredients. As we lessen our footprint and increase our use of renewable materials, we have replaced 75% of the petroleum with ingredients grown in nature, like sugar cane and rubber sourced from sustainably managed forests. The addition of natural rubber helps provide rebound and overall comfort.