Originally Posted by NWBoarder
Maybe Rome will have a definitive opinion here, but I'd say size down to the m/l. If you have super bulky boots, then maybe the l/xl, but I really think you'll fit the m/l better.
Thanks NWBoarder but everything I'm finding on the Boss 390's is they come in S/M and L/XL. I've not seen an M/L option.