http://www.amazon.com/Topeak-MTX-Tru.../dp/B003UWLQEY

Click the Size dropdown and select the bottom one in the list. Is this the DXP? Based on what I can tell, the specs look the same, and it says it has the fold out panniers and expandable top.

For $79, that's ridiculously cheap. It says $125 list so I assume that's the DXP, but I'll wait to pull the trigger until someone can confirm.

EDIT: Oh, and to be clear, I DO want to have the MTX style bag, not the straps.