The Assos T FI 13 S5 Bib Shorts are anatomically tailored for the ultimate riding experience! Their ergonomic 6-panel cut uses fewer seams for an amazing fit and feel. And, the multi-dimensional stretch Assos fabric supports your muscles so you’ll ride strong all-day long. There’s also a carbon mesh upper back panel for awesome breathability. From the first mile to the last, you'll love the Assos high-density chamois with Elastic Interface Technology that moves with you and eliminates friction so you feel great on your longest rides!