The ThermaFlow 5.0 Jacket blocks cold wind and keeps you warm, while letting your body breathe—perfect for high-output rides in chilly conditions. Its custom-developed double weave fabric combines a windproof, water-resistant outer shell with a ventilated fleece interior made with lightweight, thermally efficient GRAPHENE yarn. Built without a laminate, it maximizes airflow while still sealing out the elements with a PFAS-free dirt- and water-resistant coating, seam-taped construction, and snug elastane cuffs. The Ride Adaptive Hood (RAhD) features a patent-pending magnetic system that keeps it in place—either fixed to your helmet so it won’t blow off at speed, or secured to your back so it won’t flap like a parachute —while the unique ClimbVent connector allows you to ride with the jacket fully unzipped when airflow is needed on long climbs. It works great on its own or as a midlayer under a shell when the weather turns. Made with bluesign® approved fabrics, the ThermaFlow 5.0 jacket is built for the cold when you bring the heat.