I purchased the RS neck wallet, along with the money belt and lambskin wallet. The money belt and sm wallet worked fine; however the strap pulled loose from the neck wallet after only two days use. I didn't have much in it either so weight wasn't an issue and I didn't pull on it or snag it.
When I looked at it closely, the end of the strap was frayed but the stitching on the wallet itself was intact (no broken threads or tears). From what I can tell, it looks like the strap was not sewn in properly.
I was going to see about returning it for a replacement; however decided to repair the damage myself, since it now has sentimental value to me.
If anything, this is a heads up to check the straps carefully for proper workmanship.