CASTELLI Fly Sey GORE-TEX Infinium™ Windstopper® JacketFor 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.Redefine your cycling wardrobe with the Castelli Fly Sey GORE-TEX Infinium™ Windstopper® Jacket, a revolutionary garment that masterfully blurs the line between a protective jacket and a high-performance jersey. This innovative Jack-sey is the ultimate solution for transitional seasons and fluctuating conditions, providing core warmth and weather defense without the bulk or restriction of a traditional outer layer. Experience the freedom to ride hard through cool mornings and unpredictable weather, knowing you have precisely the right amount of protection.At its heart is a sophisticated, multi-layer construction powered by Castelli´s exclusive FLY Fabric Technologies (FFT). The outer FLY SL Shell acts as your first line of defense, shielding you from chilling winds and fending off light rain and road spray with its durable water-repellent finish. Inside, a layer of advanced CLIMA SL Insulation provides remarkable warmth for its minimal weight, efficiently trapping body heat. The final piece of this protective puzzle is the GORE-TEX INFINIUM™ WINDSTOPPER® inner lining, which delivers complete windproofing while offering best-in-class breathability. This crucial feature allows excess heat and moisture to escape, preventing overheating during intense efforts and ensuring you stay dry and comfortable from the inside out.Engineered for performance, the Fly Sey Jacket features a minimalist low/no collar design, which enhances comfort and allows for better temperature regulation as your effort level changes. The full-length, top and bottom-opening YKK® Vislon® zipper offers customizable ventilation on the fly. Functionality is paramount, with three spacious rear pockets for storing essentials and an additional zippered security pocket for valuables. An elasticated waist with a silicone gripper ensures the jacket stays perfectly in place, eliminating ride-up and maintaining a streamlined silhouette. For enhanced safety in low-light conditions, strategically placed reflective tabs increase your visibility to others.Key Features:* Super-lightweight construction with amazing warmth and protection.* Low/no collar for temperature regulation.* Castelli FLY Fabric Technologies: FFT.* GORE-TEX INFINIUM™ WINDSTOPPER® inner lining.* CLIMA SL Insulation for extra warmth.* FLY SL Shell for wind and rain protection.* 100% recycled post-consumer outer shell and lining.* Top and bottom-opening YKK® Vislon® zipper.* 3 back pockets with zippered security pocket for valuables.* Elastic and silicone at waist to keep Jack-sey in place.* Reflective tabs for added safety.Technical Specifications:* Gender: Men* Protection: Windproof* Properties: Thermal, Stretch, Reflective accents* Material: Synthetic* Zipper: Full-length YKK® Vislon® (2-way)* Waist: Elastic with silicone gripper