>>930006Jones H bar, aluminum, largest size (don't ask for measurement)
I would never swap those bars out. For touring they are amazing. There's a reason half the Surly line of touring bikes use them.
Also Barflybags makes a bag that fits in the middle which fits lots of quick access, little shit. I keep a multitool, flashlight, credit card, money, a marker, some zipties, bug spray, chapstick, tweezers, etc in it. Way useful.