RANDY SUNWaterproof Skiing Socks, [SGS Certified] Unisex Knee High Breathable Hiking Trekking Sock 1 Pair

Is it 100% waterproof?

The first one listed, black with colored stripes in the middle, it's listed as "compression sock" but others say "waterproof." Are they all the same?

It says knee length sock. the "black" pairs look knee length in the picture. the colored pairs look calf style. are they all knee length?

Do they go completely over the calf to the bottom of the knee?