I don't have a hatter in my area and sometimes photos are deceptive. Can anyone explain to me the difference between the color 'Mink' and ordinary 'Brown' (as in Chocolate Brown). Also, my head measurement is just over 22 3/8 inches or 57 cm -- should I order a 7 1/8 hat? Is there any stretch over time to a new hat like a Premiere Stratoliner? Is 7 1/8 made to fit up to 22 5/8 inches or is it better to just go to 7 1/4? Thanks everybody -- I live in Canada and I'm trying to avoid sending hats back and forth because I don't know these simple things about hats yet.