Mountain Hardware Sub Zero black Goose Down Puffer Jacket. This Jacket is all about rugged performance way up high, and maximizing that warmth- to - weight ratio mountaineering look for. This Jacket is a size medium, and is unisex. • Water resistant • Dual shell fabrics protect against abrasion and weather. • 650-fill RDS certified down • Secure zippered chest pocket • Two secure zip hand pockets • Hook and loop adjustable cuffs • Internal zippered pocket • Internal waist cinch for a customized fit