I am mourning the passing of the Theyskens Theory line. From now on, it will be folded into the main Theory line.

As background: Theory has always been a great source for stylish careerwear, but not always the most exciting. Theory asked Olivier Theyskens, a rather artsy Belgian designer, to design a capsule for spring 2011. After that, they hired him as their artistic director. His influence was definitely seen in the main Theory line but he continued making Theyskens Theory as a separate collection, showing at fashion week.

As of this year, Theory decided it made more sense to merge the two and have Olivier Theyskens' more fashion-forward designs shown at fashion week as part of the Theory line. I don't know yet how it'll translate to what's in the stores. In the past, Theyskens Theory was carried at just a few department stores, separate from Theory. Perhaps it'll mean the main Theory line expands to be less basic, continuing in the direction they've gone for the past few years - not a bad change.

Anyway, I'm sad about this for three reasons, mostly personal and emotional not practical.

First, Theyskens Theory came on the scene soon after I got interested in fashion. His designs, especially in the first few seasons, were so, so me - that was a year when styles were trending darker and a bit avant garde, so it lined up well with my aesthetic. It helped shape my style and it gave me a relatively affordable, accessible source of slightly edgy clothes. I ended up with a handful of his pieces bought on clearance, and I'd love to buy more from those first few seasons. So I have an emotional connection to it.

Second, I just looked at the Theory runway show from today at Fashion Week and it's certainly a bit more mainstream and low key than his previous shows. Still excellent, but less inspiring. My wardrobe needs don't include businesswear (suits, etc) and I'm not so sure Theory will keep making the more casual or edgy pieces from Theyskens.

And third, a purely practical irritation: Theyskens pieces were cut to a different model than Theory. Theory runs very small and isn't exactly shaped like me, though it's quite close. Theyskens Theory always fit me perfectly. (Except that one silk tee I got stuck in, in a fitting room!)

It's probably a good business decision: Theory will shift a little more fashion-forward and keep up with the competition. I'm not sure how commercially successful the Theyskens line was. I always saw things on deep clearance at the Rack and Outnet (good for me!).

But I'm still sad!