This lightweight midlayer made with our revolutionary Active Insulation, Polartec® Alpha®, adds adaptable comfort to sessions in any season. Alpha's innovative lattice knit structure regulates warmth with unprecedented breathability, so you never have to break to layer up or down.
This lightweight midlayer made with our revolutionary Active Insulation, Polartec® Alpha®, adds adaptable comfort to sessions in any season. Alpha's innovative lattice knit structure regulates warmth with unprecedented breathability, so you never have to break to layer up or down.
Regulate comfort in changing conditions. Alpha® active insulation is engineered for consistent warmth, while allowing greater breathability during activity. This air exchange technology creates sustained comfort without shedding layers.
