You may want to go to a boot fitter to know what you want for sure. I had a pair of 29.5 Dalbello Rampages and I couldnt wear them due to fit. I currently have a pair of 29.5 FT High Fives and they feel amazing. They are way too different of boot styles to want either. Plus 30 will be thinner than 29.5. 29 and 29.5 are the same length, different widths. As are 30/30.5. So 29.5 will be shorter and wider than a 30 size boot.My two sense take it or leave it Im just trying to help out. But try to go to a boot fitter if at all possible.