if your a size 9 in normal shoes what size...
if your a size 9 in normal shoes what size should you get for mens snowboard bindings
Your size suggests a Large, but if you rock a low-volume boot (like Salomon) you can probably squeeze into a Medium, which will also cut a bit of weight and overall size on your board. Best thing to do is find a dealer and take your boot in ... lace up your boot and try both sizes. Of course since you're on the high and low ends of the sizes respectively, you'll have to adjust straps to get a snug fit.
check the sizing chart. for these bindings it looks like a large will do you. If they don't fit you might have to pay shipping but they will swap em out for you pretty easy.