For those days when you aren't sure if you need a jacket or just a jersey with warmers. The Fly Jack-sey hits that sweet spot when it's in between temperatures while offering protection just in case. Featuring brand-new lightweight construction with Castelli FLY Fabric Technologies: FFT. Treated with a water-repellent finish to help keep you dry. All this in a super-lightweight Jack-sey.
Warm, dry, comfortable and very soft. This base layer feels warm from the moment you put it on. The best choice for cold-weather riding.
Wide temperature range combined with high-stretch seamless comfort makes this our most versatile warmer.
Nano Flex for the ultimate warmer: warm and comfortable in dry conditions, water repellent in damp conditions, and still warm in extreme conditions.
UPF 50+ sleeves with a limited-edition graphic by Richard Pearce.
Comfort and aerodynamics meet in the fastest, most comfortable Free Aero Race Bibshort to date.