When your winter cycling regimen requires the maximum warmth of a bib tight, Assos has you covered. The Assos LL.607 bib tight is built with a combination of Roubaix and Roubaix Quantum Leap (RXQ) fabrics. RXQ is a breathable, soft touch insulating fabric featuring a unique 3D air-channel texture. Air is a great insulator, and wrapping your body with this structured fabric creates a micro air cushion next to your skin, enhancing warmth and allowing moisture to evacuate. Tailored to fit your body in the cycling position, the Assos Campionissimo AEPD racing fit offers total freedom of movement, and features strategically placed seamless panels behind the knees for a smooth, unimpeded rotation. A stretchy, anti-static mesh back panel between the bib straps improves ventilation and enhances the fit. The tights feature a micro zipper on the front panel for easy on/off, and seamless stirrups to help keep the inevitable chill off your ankles. This bib tight has no chamois and is an ideal layer over your favorite shorts.