Valhalla Nightwalker IV Sleeping BagEngineered for elite explorers conquer unforgiving environments with impervious warmth. When the chill of night sets in, the Valhalla Nightwalker IV Sleeping Bag is your trusty ally. Its Dupont Thermolite Micro insulation with anti bacterial pure silver microfiber ensures optimal warmth down to 10C, while flat filling prevents cold spots. The 210D Ripstop Nylon inner lining and outer shell provide durability, while the 210D Nylon Oxford bottom boasts