Eberlestock Intex II 45-Degree Frame, Long, G4 Operator/F4 Terminator

This frame is compatible with the G4 Operator and the F4 Terminator.

The interchangeability of these two frame types fulfills the Intex II modular concept. The basic design of packs equipped with the Intex II is intended to take advantage of the frames superior support, comfort, and load-bearing interface with the human body. But there are times when you may want a flatter or more compressible pack, or a more flexible overall structure, and it is for these reasons that we've developed the Gossamer. 

Once you're equipped with an Intex frame, you'll be able to switch your pack back and forth, selecting a style that best meets the needs of the day.