This Kyanite Lightweight Zip Neck is an extremely soft lightweight stretch fleece pullover insulating layer from Arc'teryx. Great as a standalone next-to-skin layer or underneath a waterproof hardshell rain jacket. Features include a deep front zipper with mid-height collar, articulated patterning, comfortable merrow stitch seam construction, a relaxed fit, and a durable anti-odor finish. Soft, warm, and extremely comfortable.