The Castelli Quick-Step Competizione Bibshort allows us to wear the same colors as our favorite pro team for our own training rides. The combination of Affinity Pro Lycra and Vortex BLC textured fabrics offers exceptional stretch and optimized aerodynamics, sitting comfortably on our legs and staying in place as we ride with the GIRO4 leg grippers. We are big fans of the lightweight breathability these shorts provide with mesh bib straps and the all-day seated comfort and support from the KISS Air2 seat pad.