The ultralight Thermarest Corus HD Quilt offers unprecedented comfort wherever you use it. It's ideal for minimalist backcountry travel from spring through early fall, and versatile enough for hut to hut traverses and car camping in any season. The Corus offers a surprisingly liberating feeling of unrestricted movement throughout the night. It will leave you wondering how you got along without one. High loft 650 fill Nikwax Hydrophobic Down packs small. ThermaCapture seams help retain radiant heat for added warmth. Full perimeter side baffles for draft protection. Elasticized, insulated footbox keeps feet warm and keeps your quilt in place. Perimeter snap loops and included loop kit mate with another Therm a Rest mattress, quilt, sleeping bag, blanket or sheet. Includes external snap pocket, stuffsack and compartmental storage sack.