Zappos.com is proud to offer the Mammut - Aconcagua Jacket Men (Black) - Apparel: The sleek yet durable Aconcagua Jacket shrugs off cold weather climbs and chilly belays so you can focus on your route. ; Polartec Power Stretch Pro fabric insulates and moves with you. ; Full-length zip with zipper garage. ; One zip chest pocket. ; Thumb loops. ; 50% polyester, 40% polyamide, 10% Elastane. ; Machine wash cold and dry flat. ; Length: 28 in ; Product measurements were taken using size LG. Please note that measurements may vary by size.