The Fly Vest, giving you just enough warmth to take the chill off, is an amazingly lightweight garment. Featuring brand-new lightweight construction with Castelli FLY Fabric Technologies: FFT. The sides and back offer enough stretch to get the perfect fit for this unbelievably lightweight vest.

A jacket so light it feels like it could just fly away. Super-lightweight construction using Castelli FLY Fabric Technologies: FFT to keep you warm and protected from the elements.

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.

The Fly LS Jersey is a lightweight thermal long-sleeve jersey for those days when it's just a bit chilly and you're looking to go fast. The soft brushed-back Fly T-SL fabric offers the right amount of warmth while being stretchy and lightweight. We've tailored the Fly LS Jersey for a close-to-body fit.

A hooded jacket so light it feels like it could just fly away. Super-lightweight construction using Castelli FLY Fabric Technologies: FFT to keep you warm and protected from the elements.

The Fly LS W Jersey is a lightweight thermal long-sleeve jersey for those days when it's just a bit chilly.

Great on its own on cool days, or under a vest for added protection, the Sfida is the perfect bridge between your summer-weight jerseys and a full jacket.

The perfect foundation thermal jersey for fall and spring riding. The warm fabric and the drop-pocket construction are the keys to this jersey's performance.