Therm-a-Rest Antares HD Sleeping Bag Long Zoned Insulation: Box-baffled 750+ hydrophobic down w/ sewn throughinsulated bottom Reflective ThermaCapture lining for added warmth without excess weight or bulk. SynergyLink Connectors integrate your mattress for optimal comfort and efficiency Heat trapping draft collar and full-length zipper draft tube Snag-free zipper, cinchable hood,external zip pocket too! Stuffsack and storage sack included