Print of the belt finished today. I'm a fairly skinny guy, so after converting my US size to mm, it matched up right in the middle of the smallest size. After trying it on, I barely got the bucket to latch of the first notch. The bucket is a little tough to get latched, but stays quite secure and its easy enough to take off. I customized the blank buckle to say "GMC" fur my truck, haha. Unfortunately the buckle kinda protrudes out the side more than I like.
Used tree supports in Cura.
All in all, it's a fun thing to have. Took 24h 35m to print on my Ender 3 Pro.