This is the field-proven, feature-packed down bag you've always wanted. We've loaded this bag with the comfort features that Therm-a-Rest bags are known for. Our integrate the bag with your sleeping pad while allowing our Zoned Insulation to keep fill where you need it most. The fit of the bag has been perfected in our onsite cold chamber to create our W.A.R.M. fit that allows room for multiple sleep positions without compromising thermal efficiency. Stuffed with water-resistant 650 fill certified by the , the four-season Questar is ready for your next backcountry adventure. The Questar is designed to fit both men and women. Compression sack and storage sack included.