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Polartec® Alpha® was invented for the U.S. special forces.
They required a superior insulation system for extreme temperature variations and the start-stop conditions of combat. Alpha® active insulation is engineered for consistent warmth, while allowing greater breathability during activity. This air exchange technology creates sustained comfort without shedding layers, which isn’t an option during a mission.
Regulate Comfort in Changing Conditions.
Available in 100% Recycled P.E.T. Plastic
Available in at least 50% Recycled P.E.T. Plastic
Polartec® Alpha® active insulation continuously releases excess body heat before it builds to cause saturation and discomfort.
This patented, adaptive quality is made possible through Alpha’s lofted fibers connected to a solid mesh core. And since Polartec® Alpha® is inherently hydrophobic, it resists all moisture and dries incredibly fast.
The laws of warmth and motion must be respected during the most challenging ski mountaineering race in the Italian Alps, Trofeo Mezzalama. Dynafit and Polartec collaborated to create performance apparel that keeps athletes comfortable and safe despite extremes.
Find garments made with Alpha® and other Polartec® fabrics from these retailers