Worn it for a few more days, during which I've flashed off a few loose fibres with a lighter, not threads or loops though. Had a long walk yesterday. but this time put it in a sock and washed it in the machine. I good daylight it's looking a little lighter, very slightly faded, but you'd really need a brand new one to compare it with to tell just how much. After almost a month I'm very pleased with it.