Not sure how short you need it, but the "Short" size Comfort Strapp goes from 33" to 37" and they are super comfy.edit: does anyone have any idea for a shorter strap? I currently have mono big betty with the tail end knotted up to make it even shorter. I'm a pretty short guy (5'6/1.7m) and i usually swing it pretty high up.
Not the best LOOKING strap in the world, but certainly at or near the top for comfort.
Comfort Strapp Pro Bass Strap - Short (33-37")