Therm-a-Rest Vela 35-Degree Puffy Down Camping Quilt Reliable: lightweight, 650-fill nikwax hydrophobic down packs small and stays Dry longer and dries faster than regular down Added warmth: seams help retain radiant heat for added warmth Draft protection: full-perimeter side baffles Secure: elasticized, insulated foot box keeps feet warm and keeps your quilt in place Build a system: perimeter snap loops and included loop kit mate with another Therm-a-Rest mattress, quilt, sleeping bag, Blanket or sheet