Castelli Endurance 3 Bib Short Size Large Cycling Shorts Retail $159.99 Brand new with tags See size chart in photos for sizing info and measurements Endurance bib short designed for long training rides Endurance Evolution fabric offers muscle support Mesh bib straps and back keep things cool and breathable Progetto X2 Air Seamless seat pad for improved comfort and airflow For our longest rides where a comfortable kit keeps us going, we put on the Castelli Endurance 3 Bib Short to ensure we finish our ride as strong as we started. The bike-specific anatomic cut offers a perfect fit in riding position, while the Endurance Evolution fabric provides excellent muscle support and quick-drying properties. For greater long-distance comfort, the Progetto X2 Air Seamless seat pad keeps our perineal area padded for long days in the saddle.