Bill McClellan had a column in the P-D the other day in which he relates something which I have long believed is true. And that is when it comes to shopping for clothes, the more expensive the store, the more likely the items are sized for a psychological boost.
For example if you are normally a size 12 at most places, you'll find yourself in size 10 or even lower if you shop at Talbots or another upscale place. This practice makes a buyer feel better about her weight, thinking, "wow, I'm a ten...or eight again."
Target, Walmart, Sears, even Penny's fall into the bigger number sizes while Brooks Brothers, Talbots, even sometimes Macy's and Dillards give you a smaller number for the same fitting item.
This sizing habit by Talbots isn't the only reason I tend to shop there, but it sure doesn't hurt. Things from there fit me and have a classic rather than trendy look. They mirror trends through the use of color rather than style. They're meant to be worn for more than one season or even one week.