The Merino Wool Trekking TXC- 900 Sock is a thick high trekking sock made of triple-layer plush containing merino wool, which is a unique natural material, thus providing excellent thermal insulation and moisture removing properties. SILTEX – a polypropylene material containing silver ions which slow down bacteria and fungi growth, reduce unpleasant odors and maintain proper skin balance. The sock has been designed to provide better thermal insulation and protection against blisters. Protection zones are fitted around the leg-bending area and the Achilles‘ heel. Elastic is fitted around the instep area.