The IA5K pack system is the flagship of the IA lineup combining a more functional version of the former 4k and 6k systems. Now with the sleek rolltop and the horseshoe-style main body entrance, this is what everyone's been asking for in the IA lineup. At 5200 ci, this design is perfectly suited for the 4-7 day extreme backcountry hunting adventure. 

Hip Belt Sizes go by "Pants Waist Size"