GORE-TEX INFINIUM Made in the USA or Imported Material: GORE-TEX INFINIUM Insulation: 850+ power goose down Shape: mummy Zipper: full-length Max User Height: [regular] 6ft, [long] 6ft 6in Rated down to -40F and fully windproof, we trust the Bison GORE-TEX INFINIUM Sleeping Bag to insulate and shield us while we rest on our most extreme expeditions. This bag is brimming with 850+ fill power goose down, distributed throughout the bag with interlocking networks of horizontal baffles, side baffles, draft tubes, and an oversized hood with ruff to seal in heat and block out the elements.