A single layer can have a bigger impact than you think. Mountain Hardwear&';s go-to, packable hoody houses the highest warmth-to-weight ratio of any fabric in their line, along with high breathability and a moisture-wicking stretch neck section for keeping your head on a swivel. This unique active mesh construction consists of hollow, tube-like fibers that absorb sweat quickly and efficiently-supporting insulation and heat-shielding properties to keep you temperature-regulated from the trail to the lift, and everywhere in between. Features Brushed back mesh made with a hollow core yarn that provides breathability to keep you cool and comfortable Anti-odor finish High warmth-to-weight ratio Fitted three-piece hood for extra protection Secure zip pocket at front left Easy to layer under outerwear or wear on it&';s own Thumbholes made with a soft knit fabric construction MHW heat transfer logo at left sleeve cuff Imported Materials Fabric Body: Brushed Mesh: 100% Polyester