Carhartt Men's SC9140M Lightweight Synthetic-Merino Wool Blend Crew Sock - Blue X-Large

44% nylon/28% CoolMax polyester/23% merino wool/5% elastane - Temperature-regulating wool blend combines Merino with COOLMAX Eco-made yarns - Heel arch and toe cushioning - Arch support - Mesh instep for breathability - Enhanced heel pocet for secure fit - Abrasion-resistant yarns in heel arch and toe - Fine-gauge knit for a thinner performance fit and feel - Can also be worn as a liner