Thanks for the kind words! The seams are there to add some visual interest to the sides of the bag, but they also conveniently hold the D rings for the handles and allowed me to cut pieces for the sides much more efficiently than I would have been able to. I made this from scrap pieces I got from a leather countertop installation so cutting each side in 3 pieces allowed me to waste far less material.
I don't actually remember what the leather is exactly. It was originally ordered over a year ago, but it's from Springfield Leather Co. and about 4/5 oz. Probably in their upholstery leathers section.
I don't have a pattern, but the sides/ends are trapezoids and the bottom is a rectangle so it shouldn't be too hard to make as long as you make sure the lengths of your edges end up the same. I'll add some photos of the construction.
Most difficult parts:
-The tabs that hold the d rings on the ends because the leather is 2 layers there and the zipper makes it uneven without some extra work.
-The straps on the ends. Sewing through the strap, strap holder, 2 layers of bag leather with the hardware piece in the way was very slow going.
