I like this yarn a lot, although I'm not sure I would use it for socks again - not that it's not good for socks, but because it would be so nice for other things.
These are relatively thick socks, but make a nice firm fabric, with good stitch definitions. The socks feel nice on the feet. There is nylon, but I'm not sure how well these will wear.
Stats: Mountain Colors Bearfoot
Gauge: 8 sts per inch
Needles: 2.25 mm
Pattern: Toffee Sock
Mountain Colors has brought in another sock yarn, but this one is still offered.