I just got a Florentine! Preloved and an amazing deal because it didn’t come with the belt. I experimented with some belts I had and came to the conclusion that I didn’t like the thinner 12mm belt (what LV’s thickness is) because the bag moved around on it and kind of flopped too heavy. So I decided to look for a 15mm belt to go with. I find that provides more stability for t waist bag style and is about the thickest that will safely fit through the loops without stretching them. For this reason I didn’t look into buying a LV replacement part, so idk if you could get one of the snap belts at a boutique or not. I see some preloved on eBay... I also didn’t want to spend that much money on it. So I got a 15mm belt from mcraft leather on Etsy. Measured a million times and sent him super detailed and confusing instructions and he nailed it! $89! I’m in the process of patinaing it now to match the rest of the bag. I’ll take some pics to post.