Boxy Bar/Saddle Bag
While I like rolltop designs and traditional randonneur bag closure systems, I've been playing around with zipper closures on bags. I tested out a couple designs and settled on a bag size that is basically the same volume as the mini rando bag I make. It fits nicely under upright bars and most likely would play nice with drop bars with a long stem and non-aero brake cable routing.
What started out as a dedicated front bar bag easily became a saddlebag as well by having straps spaced for Brooks saddles. So it works well up front as a bar bag, or in back as a saddlebag.
This one has side sleeves and premium leather (both options slight upcharges from the base price).
Available as a made to order bag here: