This is Darn Tough's burliest hunting sock. When it's crazy cold, but you're still going out, this is your sock. This Sasquatch has extra heavy terry loop construction that protects the entire foot for maximum warmth. Over-the-Calf height keeps the elements at bay. Fine gauge knitting makes this Merino Wool hunting sock a true workhorse that’s supremely comfortable, breathable and fast drying. No slipping, No bunching. More stitches per inch ensure a foot hugging fit. Less bulk. More comfort. Darn Tough's Zero Friction Heel eliminates blisters. Still made in Vermont. Guaranteed for life.