This is the ultimate frame setup imho. I love the K2 frame and the duplex belt so I put the 2 together and got the best of all worlds. As a bonus, since the kifaru belt has shoulder straps attached to it and the K2 attaches them to the frame, you get additional compression straps. I attach the kifaru straps to the shoulder straps and the K2 straps can become x straps up to the upper frame compression straps for a really secure load. The belt has been permanently modified by removing the frame stay pockets and adding Velcro to attach securely to the Exo frame. Frame will come with original Exo size medium belt. This setup cost over $400. Only reason I am selling is I just got my new ranger green Exo frame and ranger duplex belt. Total frame weight with tons of compression straps is 3lbs. This is the most comfortable frame I have ever used. Asking $315tyd lower 48. Can add one of my custom bags/lids if you want a complete setup.