I got this in a Thin XXXL, and it sits too loose (this is good, as a fat lady nothing's ever been too big)! I've found combining this harness with the choker harness works to keep them both fitting properly, and it feels amazing to wear. Highly recommended, just get a slightly smaller size than you'd think!
I've been wanting a chain body harness for a while and once I saw this chunky version I had to have it. I ordered it by the size I would normally wear in clothes and it was definitely too long because the chains are so big. Luckily I was able to alter it as the chains are in two pieces, but regardless it is such a great piece and keep sizing in mind when ordering!
Lovely products I really do enjoy this brand