In 1993, a small group of people who had weathered years in the outdoor industry decided to get together and form Mountain Hardwear. In addition to working in the outdoor industry, the Mountain Hardwear founders were avid outdoors people themselves Mountain Hardwear has always focused on bringing radical thinking to the gear they make. That's why they have a section in our website that talks about the innovation they've built into their products. Our most popular down bag, the Phantom™ 32 is a really light, warm and compact two-season sleeping bag. The Phantom 32 is built to a snug mummy fit from Superlight 15 denier fabric and insulated with 800-fill down. Extra insulation at feet and torso accommodates a woman’s thermal needs.