The WFS X-LITE is an ultra lightweight sleeping bag with hollow core fiber insulation for warmer outdoor nights, rated for 40-50 Degrees. With a 210T soft micro fiber lining, this sleeping bag is your go-to for light travel on warm breezy nights under the stars, or cool nights cozy in your cabin. Includes a compression bag with a handle and straps for easy compact travel.WARNING: Cancer and Reproductive Harm -www.P65Warnings.ca.gov