Description: FEEL BETTER, PERFORM BETTER: Flexible support and shock absorbing cushioning from heel to toe help reduce fatigue, prevent common running injuries such as shin splints, and boost performance everywhere you run, from the trails to the track; the insoles also fold at the flex point, enabling maximum flexibility with movement 3D Dynamic Arch Technology & Multiprofile Arch Support: Our dynamic arch support insoles come in low, medium and high arch support profiles; they feature a deep decoupled heel cup that fits, wraps and locks the heel in place, improving stability, reducing pressure, and providing a perfect fit