Leatt MTB Thermaflow 5.0 jacket 2026

The ThermaFlow 5.0 jacket blocks out cold wind and keeps you warm, while allowing your body to breathe.

Perfect for high-intensity outings in harsh weather conditions. Its custom-developed dual-weave fabric combines a windproof, water-resistant outer shell with a ventilated fleece interior made from lightweight, thermally efficient GRAPHENE yarn. Made without laminate, it maximizes airflow while protecting from the elements with a PFAS-free, dirt- and water-resistant coating, taped seams, and snug elastic cuffs. The Ride Adaptive Hood (RAhD) features a patent-pending magnetic system that keeps it in place, attached to your helmet so it won't fly off while riding or to your back so it won't flap like a parachute, while the unique ClimbVent connector allows you to ride with the jacket fully open when you need airflow during long climbs. It works great on its own or as a midlayer under a shell when the weather changes. Made with bluesign®-approved fabrics, the ThermaFlow 5.0 jacket is designed for cold weather when your spirits are high.