Yes, actually.

Backcountry.com is having a sale on Stoic long-sleeved merino shirts. Their 17.5 micron fabric is softer than most of the cotton I own. The ones without zippers or pockets are selling for $32 right now; I think I paid $40 or $45 for the couple I have. The ones with a zip and pocket are $40 at present; I paid $55 for the three I have. I just ordered a few more of both. I love the pocket, personally, but because the fabric is so thin, I wouldn't try to hold anything of much weight in it. A pair of sunglasses, etc. You could technically fit a book in there, I'd be worried about stretching, or even tearing, the fabric.

I've heard good things about Minus33, and they use 17.5 micron fibers in their light-weight clothes.