I've ordered many poplin shirts from TM Lewin, but the 14,5" is too tight around the waist, however, the 15" would fit around the waist, but is half an inch too big in the collar. Should I just order one in 15" and see what happens? If the shirt shrink half an inch so it will fit me, it will not shrink any more than half an inch around the waist?
EDIT: What temprature should I wash them on to shrink half an inch? Should I tumble dry them?