Elevate your training sessions with the same pro look and feel as the Colorado Rockies when you wear this Authentic Collection Dri-fit Quarter-Zip Windshirt by Nike. An exterior back panel featuring stretchy rib-knit lining provides optimal ventilation and a full range of motion, while sweat-wicking technology keeps you dry. Made from lightweight taffeta fabric, this Colorado Rockies windshirt helps you stay comfortable from start to finish.