OMG I could stab those fuckers in the face. Does your foot generate 200 degrees of heat? I highly doubt it when that foam is fully heated up it becomes so maliable it pushes out. I'm a 10 3/4ths for a right and a 9 and 3/4ths for a left and I'm in a size 10, I could go down to a 9.5 easily. Thats a true intuition liner it is meant to be heat molded.