New with Tag The PAS Mechanism Pro Bib Shorts offer advanced structurally mapped fabric, integrated zones with variable 4D-stretch and woven silicone-free grippers. The bib shorts use a soft and silk-like stretch-woven main fabric that is abrasion-resistant and has a high strength-to-weight ratio - for a unique body wrap and second-skin feeling. Combined with our signature 4-layer ultralight foam chamois placed in a position optimised for speed, the PAS Mechanism Pro Bibs creates a pro-level performance system.