Warm up your core with the Rab Women's Microlight Down Vest whether you're belaying during an alpine ascent, trekking across a chilly landscape, or wanting an extra mid layer while you ski. Made with Pertex Microlight fabric, this vest is extremely lightweight and surprisingly durable so you don't have to worry about ruining it when you're running through the woods. Insulated with 80g 750 fill European goose down, the Microlight will keep your core warm in moderately cold conditions without adding weight. The Microlight's slim fit allows you to throw other layers, like a waterproof shell, over this vest when the weather turns ugly. Its armholes are bound with Lycra to keep cold wind out when you reach the top of the mountain, and its hem has a drawcord so you can decide how tight you want it. The vest's chest pocket doubles as a stuff sack so you can take this vest with you anywhere without taking up much space.