Our large frames provide incredible comfort without sacrificing strength or utility. The Duplex Suspension System provides internal frame comfort with external frame utility. It is simply top of the line, compared to anything else. Around the world, this suspension has earned it’s reputation as the very best. It is the only removable frame in existence. The name derives from the dual nature of this frame – the unique ability to remove from the pack and convert to a hauler. The pinnacle of huge load capabilities, the Duplex provides incredible latitude for adjustment and fit, and can handle any load you’re able to carry. Newplex Shoulder Straps for new frames (Current Lite and Tactical) with 3/4? webbing: – Replacement shoulder straps for our Light and Ultralight Frames. – Choose short shoulder straps for a torso length of 14.5? – 18?. – Choose long shoulder straps for a torso length of 18? and taller. Duplex Shoulder Straps for new frames (Duplex Hunter and Old Tactical) with 1? webbing: – Replacement shoulder straps for our Light and Ultralight Frames. Available now in Ranger Green only