For consistent breathability and warmth on high-output start/stop adventures in alpine climates, grab the Millet Trilogy One Alpha D Hooded Jacket. Utilizing innovative Polartec Alpha Direct insulation, this jacket places Alpha Direct's soft fleece insulating fabric right up against your skin, separating it only with a thin mesh lining. The result is an added element of comfort to go with the breathable, temperature-regulating warmth that Alpha Direct provides. Thanks to this comfortable warmth you won't be tearing off layers on cold weather climbs or backcountry ski treks, and with a durable and stretchy shell you'll have lightweight protection from windy weather. A helmet-compatible hood gives you added coverage and warmth when you're attacking multi-pitch climbs, and the large chest pocket gives you quick gear storage with a minimalist design. Mobile and breathable, with multi-sport functionality, this jacket is bound to be a staple of your winter wardrobe.