Top critical review
When in doubt get the next bigger one.
Reviewed in the United States on August 23, 2017
This is pretty equivalent to the heavy duty kind (with straps), but what bothers me is that they show a guy wearing it on his bare body, Seriously, that's not really how you wear these kinds of things, you wear them over one piece of clothing. So what that means is you're really not sure which size to get. I got the L/XL but I really should have gotten the X/XL. The one I already had, with straps is a 42-48 and when wearing it over clothes it really wraps around nice and doesn't feel like it's going to pop open.
Because this one didn't have the corresponding numbers, I guessed (another thing that bothers me) and got the L/XL which is probably 36-42. Now that may sound big, but when you consider wearing it over a shirt and your belt (it goes down that low) 36-42 is not that big.
So, here's my advice. If you're tiny, get the smallest one. If you have anything like a 30-32 inch waste, get the middle one. If your waste is over 36 get the X/XL which is probably equivalent to my 42-48 strapped one. Follow this advice and you'll have one that really wraps around securely. Remember the stretchy part that you secure last will ensure that it's not too big.