The beauty of the Millet Women's Trilogy Primaloft Hooded Jacket is you can throw it on and climb hard without having to deal with a soggy pile of down and sweat once you get back to base camp. Its Primaloft Black insulation offers a great warmth to weight ratio and will retain insulating properties once it gets wet. The Pertex Endurance fabric is designed to repel wind and moisture and offer exceptional breathability all at the same time. The trilogy features an ergonomic fit that will layer comfortably under a shell jacket, or work well on its own. The hood is fully adjustable and helmet compatible, and the cuffs and hem can be adjusted to dial in the perfect fit.