Alpha 60 Hoodie in BlackWhen in comes to ultralight, versatile insulation, Senchi Designs has you covered. Quite literally. This is a featherweight fleece mid layer constructed of Polartec Alpha Direct 60, a fuzzy fabric that does an excellent job of trapping hot air while managing moisture. Throw this on under a shell or jacket and you're invincible. Ultralight (60g m2) High warmth to weight ratio Fragile comes with its own mesh carrying bag Resists moisture and fast drying