The Mammut Women's Aconcagua Pro ML Hooded Fleece Jacket wraps you in soft, stretchy warmth, with moisture wicking performance for climbing, hiking, and camping. Its Polartec Power Stretch Pro conforms to your every move when you're pushing your limits at the crag and on the trail. Despite its highly flexible nature, it's also incredibly resilient and durable, lending itself to wearing underneath a climbing harness or backpack. In fact, you'll find its thin, elastic material along the hip ensures a non bunching fit under a climbing harness. Other key features include smooth flatlock seams, as well as waffle structure backing for extra heat retention.