Carhartt Men's SQ8012M Lightweight Durable Quarter Sock 2-Pack - Black Medium

63% nylon/29% polyester/8% elastane - Fights odor - Fine-gauge knit for thinner performance fit and feel - No terry cushion - Arch support - Enhanced heel pocket secure fit - Mesh instep for breathability - Abrasion-resistant yarns in heel arch and toe - Can also be worn as a liner