The Pace Flow Half Zip is a fitted midlayer built for high-output activities across all seasons, using Polartec® Power Dry® Mesh to balance insulation with exceptional breathability. Worn alone, it vents excess heat and moisture during warm-weather efforts; layered under a shell, it traps warm air for reliable insulation during ski touring, snowshoeing, or winter running. The fabric is constructed from 100% recycled and recyclable polyester with a filament fiber design that drastically reduces microfiber shedding compared to standard fleece. A zippered chest pocket and adjustable hem drawstring round out the functional details.