Oktoberfest/Halloween Costume

I've been half-heartedly searching for an Oktoberfest outfit that could double duty as a Halloween costume. My grandpa (super German) has real lederhosen and has worn them many times over the years. Most of the available styles are either too slutty or too much the other way. I came across a strange web site in looking for costumes: German Theme Wedding. What caught my eye is that the *very* first link is Big Girls' Bras. That seems to be racist to me. Are large and German synonymous with one another?