Designed for women who race, the Castelli Women's Free Aero Shorts combine new cutting edge materials with speed-enhancing technologies to give you the best in fit and performance. All-new fabrics, including the dimpled Vortex fabric on the legs and Forza fabric on inner legs, work together to increase aerodynamics, compression and comfort. New and improved Progetto X2 Air chamois provides the ideal blend of support, ventilation and fast-drying performance for race-day. Reconstructed waistband and flatlock seams maximize on-the-bike mobility. Giro Air mesh-like leg grippers evenly distribute pressure and stay in position during your hardest efforts.