Galco has a reinforced web belt that I have been using for a while and really like... and you can get it in 1-1/2" also. It is very pricey and note that some of the of holster belt clips are tight on the 1-3/4" (specifically blade-tech clips & loops - G-Code lock on great!), but it is not really thick like some of the heavy-duty leather gun belts.

https://www.galcogunleather.com/inst..._256_1165.html