you can just go to hermes and find a birkin, it really depends of the SA, some dont like to offer the bags to clients they dont know, if you arent really picky on the one you want it cna be a matter of weeks/months before you get it. the custom orders are different though you need to be refered by a SA to be put on a list, from their you pick all you custom trimmings/ leathers colours etc. to create what is ment to be your own unique bag, in an hermes style