There's a reason Rigby and Pellor can charge £100 for bras. They don't have an algorithm. They have well known name; great (apparently, I've obviously never tried it) fitting; etc.
PS: If the blog owner is reading please consider better contrast (off white background and darker text) and larger font size.
PS: If the blog owner is reading please consider better contrast (off white background and darker text) and larger font size.