Sleek and lightweight, designed for optimal speed.
Keep up with your PR goals in the Sprint X - specifically designed for winter running. The same features you love in the Sprint Series, now crafted with a soft brushed interior to trap in body heat. Engineered for high tempo runs, speed work and your winter 3-5 miler. Access everything you need with sweat-proof pockets and don’t let anything get in your way with the first-of-its-kind Windshield Tarzan Modesty Layer™ in double faced brushed fabric.