Designed with longer, below knee coverage, the RS Pro Bib Knicker offers a bit of extra warmth without stifling you when you're increasing your cadence on high octane training rides. This bib knicker is re engineered with a three way fabric design for all the benefits of compression, extra breathability, and a streamlined, aerodynamic design. Three strategically placed fabrics deliver maximum comfort, aero efficiency, and breathability for fast training rides and competitive use alike. The outer legs utilize Sugoi's Ultra Aero fabric that's dimpled for a slippery aerodynamic surface. Slimmed down front panels leverage ultra thin Tri Force fabric for enhanced breathability and temperature regulation. Adding durability along the inner legs and chassis, the short's Firo fabric reinforces the chamois area for extra protection against saddle abrasion. Designed to eliminate chafing and bulk, the integrated Formula FX Chamois is molded and welded for an excellent fit without an inseam meaning there's no seam rubbing against the saddle. This pinnacle level chamois features breathable perforations and a V notch for extra ventilation. Its 4 way stretch fabric and advanced lamination provide a smooth, seam free surface that conforms to the body, while the welded center channel and high density vibration dampening relieve pressure and fatigue from long, grueling rides. Moreover, you'll find the short's clean finish leg grippers prevent the short from riding up or bunching.