Designed to endure the treacherous conditions of 4500 meters up in the Andes where there’s not much cover from the freezing cold, alpaca is nature’s perfect fiber for trapping heat while releasing excess humidity. Chamula originally designed The Alpaca Super Warm Sox to bring warmth and comfort to the photographers standing for hours in Yellowstone at −10°F, which is all the proof you need to know they’ll keep you comfortable throughout your travels—no matter the conditions.