Protect your feet with everything you can, the SealSkinz Hiking Knee Length Waterproof Merino Sock offers that protection you need when on long treks or thru-hikes in a comfortable package. Outfitted with a merino wool construction and waterproof membrane, the sock resists odor, wicks moisture, and is waterproof. Perfect for those long treks to basecamp when the rain just won't stop and neither will you.