The Sorpasso ROS (Rain or Shine) 3/4 Tights are made for those days on the bike when it's not quite cold enough for full-length tights but then again shorts, even thermal ones, won't quite cut it for weather protection. Nano Flex Technology For the majority of the 3/4 tight, Castelli uses their brilliant Nano Flex 3G fabric. It offers both incredible warmth and excellent water-repellency via third-generation nanotechnology fabric treatment. And it has a superb level of flexibility too, so the tights never feel restrictive. But not just that, the fabric is highly breathable so you don't feel clammy when you're working hard. In areas most exposed to the weather and in need of extra protection, namely the upper front panels, thighs and across the back, you'll find Nano Flex Xtra Dry deployed. This adds both extra warmth and windproof protection while also boosting water-repellency. Sleek Fit. While the fabrics may take centre stage, the fit of the Sorpasso 3/4 tights is also worth admiring. Anatomic patterning gives a perfect fit at the hips and knees, delivering smooth pedalling flexibility in and out of the saddle. At the upper body, the lie-flat bib straps hold tight but soon disappear from your mind. And then there's the fabulously comfortable Progetto X² Air seamless seat pad to make even the longest rides comfortable. Progetto X² Air Seat Pad The pro-level Progetto X2 Air Seatpad utilises ventilating perforations to keep you cooler and drier on endurance road rides. The design allows air and moisture to flow directly to the surface fabric for quick evaporation maintaining dryness. The seat pad is constructed in 3 layer components, each dedicated to a specific purpose to create the most comfortable seat pad available. From slow and steady autumn rides through to more intense speed sessions in spring, the Sorpasso ROS 3/4 Tights keep you comfortably insulated during cool and damp days of cycling.