The hood does three jobs. Pull it under a helmet. Cinch it down as a buff on the climb. Wear it as a balaclava when it gets serious. Polartec® Alpha™ Direct throughout, a side zipped pocket for the essentials, and a fixed hood that secures properly rather than flopping around. This is not a fashion fleece. It's a tool - one that happens to look right. Regular fit. Layers under any shell in the Manifest or Catalyst lines.