Double layer offset quilt construction. 48-ounce non-allergenic Swiss-Therm Elite polyester in-fill. Teflon-coated, rugged high-count cross-dyed nylon/polyester outer. Soft, warm polyester liner. Removable fleece liner with mesh storage sack. 3-inch full-length weather-strip draft tube and bat wing at foot for easy hanging to air dry. Variable temperature rating +20?F to +60?F. For maximum insulation on cold nights, sleep under fleece liner and bag. For warm nights, sleep under fleece liner only.