What Our Gearhead® Experts Are Saying:"I use the Spectrum Full-Zip Top as my go-to midlayer when I'm chasing lines in the backcountry or lapping the resort. It fits clean under a shell, adds warmth without overheating, and the reinforced panels take the brunt when I’m brushing up against trees or loading gear.”We layer up with the Spectrum Full-Zip Top when harsh mountain weather calls for a balance of warmth, breathability, and all-around utility. Built from high-performance microfleece with strategically placed nylon overlays, this midlayer is made to move from first chair to final lap. Whether we’re hiking into a sidecountry stash or keeping warm around the parking lot, the Spectrum’s articulated design and low-profile fit make it an easy companion under any shell. The thoughtful details go beyond comfort—abrasion-resistant nylon in high-wear areas boosts durability, while moisture-wicking properties and breathability help us stay dry when the ascent gets sweaty. A zippered chest pocket with storage flap keeps small items protected, and the drawcord hood adjustment locks in heat when the wind picks up. From big objectives to everyday winter wear, the Spectrum Full-Zip Top delivers technical warmth that keeps us going.