Head and foot sleeve secure the comforter to the pads and generous sides tuck under to block out cold draftsSnap-on hood helps secure the comforter to the pads and provides a hood for cold nights; hood snaps off to save weightDownTek premium 700-fill-power down employs a nanotechnology treatment that makes down water-repellent, and also provides antimicrobial and antibacterial protectionFully insulated blanket fold mimics the turned down edge of a comforter and serves as a draft collar; blanket fold can be turned down in warmer weatherStretch stitching helps maintain comforter shape, thermal efficiency, and loft, while offering maximum volume Footbox has a waterproof breathable coating on the backside of the fabric and a durable water repellant on the exterior to protect against tent-wall condensation Drawstring stuff sack and a cotton storage bag included