The Madrid sneaker features ara's EnergyStep comfort technology. This technology is made up of several elements. The uppers feature high-tech materials which are focused on comfort and breathability. The bamboo terry cloth lining is not only incredibly soft but contains natural anti-bacterial properties, exceptional moisture management and is biodegradable. The bamboo terry cloth-lined insole features a special memory foam layer for excellent comfort and shock absorption. Last but not least, the light, flexible, and shock absorbent sole features two pockets where special gel pads rest. These gel pads, one in the forefoot and one in the heel area, provide superb cushioning with each step and take pressure off of your joints for all-day wear without fatigue. These gel pads are visible from the outside for a sporty look. You just have to try them for yourself!