Attention all racing cyclists and year-round serious cyclists: Castelli has evolved the updated Free Aero RC into a bib tight. The Free Aero RC Bibtight is made to be your first choice for most of your winter riding. Everything about it is focused on keeping you comfortable and at the right temperature. Every detail, every fabric, every seam will make your winter riding better. This is the tight for those cool to cold days. Not for bitter cold, when you'll want to use a Sorpasso or Sorpasso Wind tight. It is not for mild days, when you'll use leg warmers or a Semifreddo Bib Tight. This is for maximum comfort on those days when you need real warmth and muscle support for proper training, but you're not out in the saddle fighting for survival. In other words, it has been built for those cold weather days days when you're doing long rides to prepare for the season ahead.

Most of the tight is constructed from Castelli's Nano Flex 3G fabric. The third generation of Nano Flex is luxuriously soft, warm, and stretchy, but it also offers excellent breathability, keeps a lot of the wind out, and has the updated Nano Flex water-repellent finish. The lower legs are in Castelli's lighter-weight Nano Flex Stretch woven fabric with a lightly brushed inside and with leading water repellency. For the rest of the tight the designers have kept it simple: easily recognized minimalist Free bib straps that you won't notice while wearing the bib tight, and raw-cut leg endings that are stretchy enough to not need ankle zippers, improving comfort when you pull shoe covers over the top. This has designed to be your long-ride comfort tight, so the legendary Progetto X2 Air Seamless pad will be protecting your backside.