Breathable warmth for mountain runs - our lightest synthetically insulated hoody.Our lightest, most packable synthetically insulated hoody keeps you comfortable on cold winter runs. Its Fortius Air 20 face fabric balances airflow with wind resistance, and a PFAS-free DWR treatment repels water. Mapped 25gsm Coreloft at the front, sides, and sleeves insulates. A streamlined hood adds protection, run-specific articulation frees you to move, a zippered pocket provides bounce-free storage, and tuck-away flip-mitts in the sleeves keep your hands warm.NorvanHigh performance trail running systems for extended high output in challenging terrain.TrailFor technical mountain activities, durable and protective designs with a focus on freedom of movement for remote and varied conditions.InsulatedThermally insulated products that provide efficient warmth and protection from the elements.Synthetic InsulationMan-made insulation with quick dry times, durability and retains warmth when damp.