"These have been great for us - we're on our second pair now. Used as trousers on their own in the spring and autumn (and even on not-so-hot summer days) and with leggings underneath and/or waterproofs on top in the winter / wet / cold weather. My little boy loves them and often chooses them to wear (rather than jeans or cords - I think these are much more flexible and comfortable).
They have not needed washing much, but when they do, I just carefully hand wash them and they're fine.
The sizing is generous, and I found they last for a long time - we initially just turn the legs up a bit until he grows long enough to use them at "full length". I am sure we'll buy another pair when he outgrows the current one.
The only drawback I found is that in situations where you're around small, "catchy" plant bits like geum seeds, hay or straw bales, etc., these tend to provide a more "sticky" surface for stuff to get stuck on (compared to smoother, non-woolly fabrics). But that is a rather minor point.
Overall, these are great and I would certainly recommend them."
This was washed... Washed fine (by hand)
This was worn by... Active and outdoorsy three-year-old
Sizing: A little generous
I'd recommend this to a friend.