^^Wow, I thought I was skinny being at 125 lbs... But, I was able to SQUEEZE into a 27 GTDB's, but those stretched insanely. I would recommend probably trying out a 27 first cause trust me, you are not going to be a 26" waist in 6+ months. Maybe even try a 28 just so you can grow into it. I know it isn't great advice, but I would try that. By the way how old are you? Cause if you are still growing take my advice, if not get a 27 or 26, whichever fits better.