As a sideline to the disana covers - is there any hope if they get shrunk in the wash? The very first time we used them DH put them in to wash with the rest of the laundry and are very very shrunken. I was a tad p1ssed
I don't know. Once wool is felted I don't think you can get it back to the same size, but maybe someone on the interwebz has a solution.

As an aside, I used the lanolin on all of our woolens and the wool wash I got from the same MCN online shop as the pants and have had much better results than what I've bought in the supermarket.