The Hunter Ultima Thule with Hood is our answer to those that ask “What bag do I get if I want to see below zero temperatures and yet still have wiggle room?” The Hunter Ultima Thule is generously cut all the way down giving the user above average room with sufficient insulation. User beware, this makes for a heavy backpacking bag! When combined with the Nautilus Overbag with Hood, the Ultima Thule FTRSS is rated at -60° F.
This bag also comes with a choice of three zippers; all zippers are made from a #10 YKK molded tooth zipper. When mated, the bags can then be used for couples camping, or if in an emergency situation, for shared body heat.