Can anyone recommend a tailor in downtown / FiDi San Francisco for suit alteration? If one is familiar with Style Forum, all the better! Oxford Tailors. Be warned, however, that they're expensive. I also use Advanced European Tailors in Berkeley and have found them to be excellent. They're much cheaper than Oxford, though maybe not as experienced as OT. Still, I've had them do serious surgery on sportcoats (such as narrowing the shoulders) and they've turned out very well.