I purchased these on a whim  as I was ordering another product and needed abt 8 bucks or so to get free shipping, so I bought these knee socks.

They are fine for winter or fall.  Medium weight.  They have washed well and the elastic is still tight.  My only issue is the way the polka dots are sewn makes it quite the task to put your foot into without a toe getting snagged on all the loose threads from the sewn in dots.  Actually, I have never experienced this on a pair of socks and I usually buy funky playful looking socks.  One other thing I might add is I think for a single pair of knee socks, they were priced a bit high, as they are not that well made on the inside which I have not seen before on socks.