This was the best shirt I'd ever owned until I washed it for the first time. The fit was almost perfect - the torso was perfect but the arms were slightly tighter than I'd like, but no big deal. I washed it cold with sonnett wool detergent, then shook out and hung to dry, and it ended up wrinkled worse than any shirt I've ever owned. Okay, no big deal, I just added it to the dryer for a few minutes with my next load of cotton clothes, I always run the dryer on the lowest heat setting anyway. I took it out, pretty damp but without wrinkles, and hung to finish drying. Apparently that little bit of heat was enough to cause massive shrinkage, more than I've ever experienced. The shirt is now almost unwearably tight in the arms and fits like a small in the torso. If I had anticipated this maybe a shrunk large slim would've worked well, but too late now. None of my other wool clothes have given me any trouble, even when I just threw them in with my cottons in a rush. Very disappointing.