Description 44% nylon/28% CoolMax polyester/23% merino wool/5% elastane Temperature-regulating wool blend combines Merino with COOLMAXÂ Eco-made yarns Heel, arch and toe cushioning Arch support Mesh instep for breathability Enhanced heel pocket 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 Imported