I bought 6 pairs of these last year, and they have held up so well I just bought 3 more. They are rather oversized (I wear size 8 1/2 shoes) so when it's really cold I wear them over slipper style sox for extra warmth. I do wish they went higher up on my leg, they go about 2 1/2 up the ankle, but that's a slight quibble, mostly I love them.