S280Hmm, it kind of depends on the look you prefer. A 36 would most likely fit you perfectly on the center hole (3rd hole) but if not you'd be on the second hole from the end which would look fine. However, if you want to be safe and don't mind a bit extra coming through the keeper, you could go with a 38 and it should still fit. Hope that helps.
AmericanBenchCraftGot it today. Love the quality. As a 35 I should have stuck with the 36. The 38 puts me on the very last whole. Not a major issue as I have a leather punch and will wear it with a western buckle so it will still look good. Just wanted to tell any one in the odd sizes to just go up one inch to an even number.