a half size up.  I read the reviews and they are mixed.  Some people say order true to size, they'll stretch and others say order a half size up.  I've had mine for 3 months, now and they still are as tight as the day I got them.  I don't know if it's that I got them in corduroy or not.  It makes it hard to wear them to stretch them out, if they're uncomfortable to begin with.  I'm torn about whether to order the canvas true to size or half size up.  Such a pain to send them back.