Frank: Like Paul, I hand wash (and rinse) my HoC hose. I use a small amount of Woolite Delicate Care (pink bottle), and then lay them on towels to dry (turning them once). I have never had any problems with shrinkage.
Another possible issue with HoC hose (and others, I suppose) is the height of the hose. I wear the same shoe size as you (10 1/2 or 11) and the large, while nicely fitting my feet, come up almost to the bottom of my knee. A lot of folks don't like their hose that high. I do because they help keep my legs warm, especially with snow on the ground. 
Good luck.
John
I changed my signature. The old one was too ridiculous.
Bookmarks