Only cashmere is more luxurious. Castelli’s Free Aero Race Bibshorts (Team Version) employ three different fabrics to keep you comfortable, and fast. Their Energia Micro side and back paneling allows full range of motion, their Breathe Micro fabric in the front maximizes airflow, and their Action Micro fabric in the chamois area provides comfort and durability. Plus, their comfy Progetto X2 Air chamois has just the right balance of long-lasting support, ease of motion, and additional airflow, while their Free Bib design minimizes the bib uppers, allowing for an open chest. These airy bibs also sport Castelli's GIRO3 leg grippers and seam-free inner legs for a comfy, secure fit.