Core 365 Black Prevail Packable Puffer Vest allows your arms to be comfortable and free while battling the harsh elements to keep your core warm and dry. You can effortlessly layer a shirt or sweater underneath it. With an auto-lock zip-up front and pockets, it pulls double-duty as both a comfy layer and one that protects you from unpredictable weather. Stretch binding at armholes and hem locks in warmth.