you cant have any bigger hams than me... my calf's calves however you spell em are 19.5" around... Fox forma pros and Garnae SG10s, and i believe Sidi's make a pair that are Wide foot and fat ham compliant ... I have been wearing fox forma pro's for 3 years now and dont complain one bit The first couple weekends with em my feet hurt like mad but after breaking them in all was good no problems now.