Kinda shaggy looking, weighs next to nothing. Ultralight, simple and minimal thermoregulation. Ideal for active insulation as part of a layering system. Wear with a light base layer on the move without overheating. Wear underneath a shell to trap heat. Classic crew new style reduces excess weight and allows for an extended range of use.
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Polartec Alpha Direct. Originally developed for the US military as an insulated fill alternative, it has taken off in popularity with ultralight hikers as a standalone fleece replacement.
