Lock in on your next alpine adventure in the WarmCube® Active Aerothermal Vest. It’s built to breathe when you’re going hard on the trail or in any cold climate, and to warm you up when you pause to catch your breath. This mountain-ready, thermoregulating vest features zones of 700-fill down cubes with a clever 3D WarmCube® construction that prevents down shift and traps heat in the surrounding air channels to deliver warmth and breathability without weight. PrimaLoft® Active Evolve insulation delivers the perfect mix of breathable warmth and mobility during stop-and-go pursuits. Wear it over a light fleece for a frosty trail run, or use it as a versatile layering piece for ski touring. The down is treated with Down Defender, and the shell is treated with a C0 DWR for an extra level of moisture protection.
3D WarmCube® construction traps heat in the surrounding air channels for temp-regulating performance, warmth, and breathability
Soft, high-loft fleece provides cozy, insulating performance
Zones of 700-fill down cubes in front and back, specially treated with Down Defender for extra moisture protection
PrimaLoft® Active Evolve high-loft fleece insulation in side panels for breathable, temp-regulating next-to-skin comfort
Two zippered hand pockets for warming hands and storing phone, keys, and more
Zippered chest pocket
Elastic-bound hem
Ultra-breathable 30 CFM face fabric
Style Variants
Available Colors: Acai Berry, Shale Grey
Size Reference for Marmot Vest (Fall 2025)
Available Sizes: XS, S, M, L, XL
