For those of you who want to "feel" their boot. The Wigwam's Snow Whisper Pro sock is a second skin to deep feet dry and super comfortable. Features: X2O(R) contains chitosan, a natural antimicrobial agent Foot hugging fit Stay-put leg and top Lightweight design for maximum control Virtually seamless toe closure 38% X2O(R) Acrylic 25% Stretch Nylon 20% Olefin 17% Lycra(R) Spandex