Castelli has had great success with the Sorpasso Bib Tight, and the Rain or Shine (RoS) version only amplifies the capabilities of this mid-weight bib tight. Cyclists will enjoy the stretch, warmth and compression with water protection that makes a colder shoulder season ride that much more enjoyable. The fabrics are exceptionally soft, stretchy and warm, with Nano Flex 3G covering most of the body for some thermal gain and flexible mild wind and water protection. The panels of Nano Flex Xtra Dry covering the front, thighs and center back offer ideal additional protection where you need it most. The ankles feature rear opening YKK Camlock zippers for easy on and off, and reflective inserts are placed along both zipper for low-light visibility.

The designers have given the Sorpasso RoS Bib Tight one of their most comfortable seat pads, the Progretto X2 Air, which has proven to be a perfect design for comfort and protection for both cool weather and long hours in the saddle. it conforms to and moves with the body, reducing friction, without bunching. The upper features a soft and 2-way stretch bib and lie-flat elastic strap construction that offers lightweight support and great fit while wicking moisture away from the entire back zone. The cut is fluid and anatomic, with specific shaping at the hips and knees for freedom of movement and supportive fit.