While it’s tempting to use “ultralight” socks for “ultralight” backpacking, they quickly reach their limits when it comes to durability and comfort in inclement conditions. If you’re looking for a true 3-season sock, we recommend the Darn Tough Hiker Boot Midweight Hiking Sock. They offer the warmth and durability required for demanding conditions, and the extra padding is welcome comfort for long days on the trail.