Not River kilt, but I'll hazzard an answer. It doesn't just depend on height, it is body type as well. I', 5' 8.5" and my SWK is realistically about 1/2" too long (but I really don't care because I only wear it casually). Others here that are 6' + have said it fits perfectally. Bascially you need to measure yourself, and remember that a SWK is not 24" it is 22.24" with a 1.75" rise.

Adam