Engineered using state of the art materials and ingenious construction methods, the Snugpak Tactical Series 3 Sleeping Bag delivers superior heat retention in extreme winter weather conditions. A Paratex Steelplate shell repels moisture, while Snugpak's patented Softie Premier insulation locks in heat. Reflectatherm space-age heat reflective fabric and TS1 (Thermal Suede) make up a lining that is both luxurious and reflects and retains body heat, giving you the protection from the elements you need to get a good night's sleep.