Eureka Wild Basin 0 Degree Mummy Sleeping Bag Eureka!'s ThermaShield insulation blends solid and hollow core polyester stable fibers to ensure excellent warmth, while maintaining loft and durability. A warm-to-the-touch peached polyester lining combines the performance of synthetic fabric with the soft feel of cotton. With 75D polyester ripstop fabric, locking two-way zippers, and anti-snag webbing, the Wild Basin stands up to rigorous outdoor adventures. Secure small essentials with the internal pocket; save space with the compression stuff sack. Temperature rating of 0 degrees Fahrenheit; fits up to 6 feet; weighs 4 pounds 13 ounces. Limited lifetime warranty. The Eureka! brand began in 1895 with rugged canvas wagon covers to custom camp tents. Eureka! later made history as the tents used by the first all American Mt. Everest expedition explorers. Today, the brand manufactures tents, sleeping bags, and more.