This is the largest pack we make for the NICE Frame System. It is ideal for guides, serious backcountry hunters or basically anyone who needs the largest pack a person can feasibly carry. It has the same classic features that adorn all Mystery Ranch expedition packs providing plenty of organization and features for long trips or extended missions. Complete with side zippers that provide access to the main bag, a removable lid that converts to a daypack and a separate sleeping bag compartment. Beware, this pack is HUGE and not for the faint of heart!!