The good: the green socks are a thickish wool sock, in a nice woodsy green. They are obviously made in a small operation, evidently with a hand-cranked sock knitting machine, a device that Riv people would love. The price is reasonable for a wool sock.
The bad: sock machines make tubes, starting from the ribbing on the legs, and ending with the toes. Then the toe part has to be closed. The right way to finish the toe is to either put the sock on hand knitting needles and knit the entire toe, or to knit a toe by machine like the heel is knitted, and then graft the heel and instep stitches together. This produces a beautiful smooth toe.
These socks are instead sewn shut over the toe with a serger, the kind of sewing machine that is used to sew T-shirts and other knitwear.
If you don't mind your socks having a thick sewn seam, like a T-shirt seam, over your toes, then these socks are for you. If you prefer smoother socks, buy the other fine wool socks Riv sells.