Michael- what size are you running on the boot glove, and what size are your shoes? According to the charts I'm just barely a large, but I'm thinking that the sizing is for somewhat bulkier ski boots. Also, when you say you can ride down to 10, how long is that? I rode 2 hours the other day at 20* and my feet were in pain, but I can ride my 25 minute commute at 0* no problem. Thanks all for your suggestions.