Winter socks with a differentiated structure, ensure maximum comfort for the foot even in extreme uses and guarantee thermal insulation. Reinforced areas on the heel and toe. Double reinforcement against abrasion from boots and shoes. Flat seams to avoid pressure points. Composition: 30% merino wool, 20% polypropylene, 15% polyamide, 30% acrylic, 5% elastane. Gray color. Available sizes: S (36/39), M (40/43), L (44/47). Gross weight: 130 grams. Made in Italy.