Lorpen Thermolite Allround Sock. This is an excellent value thermolite all round sock. The sock comprises 75% Thermolite for warmth. 20% Nylon and 5% Lycra. The sock is a full cushion based sock. Ideal for walking, hiking, and general wear. The 75% thermolite composition makes this an ideal sock for cold weather. The sock is crew in height and the color is Anthracite. The sock comes in sizes small, medium, large, and Exlarge.