The Assos RSR Bolide S11 socks, refined and tested in WorldTour competitions, help eliminate the need for aerodynamic overshoes when you do not want to add weight, extra layers or deal with the hassle of putting on overshoes. As light and breathable as any race kit, this model has also been subjected to wind tunnel tests carried out by ASSOS AeroScience.Features:WorldTour tested and updated with a more secure fitCompliant with UCI regulationsFeaturing fabrics that reduce aerodynamic dragSecond-skin cut for improved aerodynamicsThe cut of Assos garments has been designed based on the position on the bike. Some Assos garments have been specifically conceived for users with an athletic build. Assos cuts are anatomical, following the A.E.P.D. system (Advanced Ergonomic Pattern Design), so Assos has designed its garments with the rider’s protection and adaptation in mind, without creating excessive pressure points.