Riding in the frigid north has never been so warmCastelli's passion for riding extends through all four seasons, and in Italy, where Castelli was born, that means frigid, bitter winters. Its warmest Bib Tights, the Sorpasso Wind, build upon its reputation of Italian design and quality and the result is a winter tight as comfortable as your favorite summer short. With the Sorpasso Wind bib tights, Castelli has taken everything you love about its Sorpasso winter tight, and made it even warmer and ideal for riding in the Great North. The main panels of the Sorpasso consist of variations of Thermoflex fabric at both the upper front, and legs. The Thermoflex Core Due at the front is a two-layer fabric that keeps warmth near your core while wicking moisture away to keep you dry. The Thermoflex Stretch used at the back and lower legs allows maximum flexibility and mobility to pedal and move while riding.To create an even warmer tight than the Sorpasso, Castelli cut Windstopper X-Fast panels for the thighs and knees. This is a windproof, four-way stretch with a fleece layer that rests against the skin. It extends the temperature range of the Sorpasso bib tights down to well below freezing. The tights are held in place with Giro++ seamless shoulder straps with a wide Thermoflex back panel — this ensures that cold and wind do not creep in beneath your winter jacket. The Sorpasso features Castelli's top-of-the-line Progetto X2 Air seat pad. This is the same pad that is found in its best shorts. The top layer was made from a seamless, four-way stretch, microdenier fabric that moves with your body eliminating chafing. To keep your skin happy, it received an anti-bacterial treatment. This layer was bonded to a multi-density foam pad that provides optimal padding for different areas. Sit bones receive denser perforated pads, while softer padding is placed in sensitive soft tissue areas. Getting in those winter base miles has never been so comfortable.Castelli finished the Sorpasso bib tights with its Giro3 ankle grippers. These keep out cold by sealing around shoe covers. The ankles close with camlock zippers so that they stay shut and are trimmed with reflective tape for low-light visibility.The Castelli Sorpasso Wind Bib Tights come in sizes Small through XXX-Large in the color Black/white.