80% Combed Cotton/20% Copper yarn – prevent painful blisters for training, sports, every day or simply relaxing. ABRASION PROTECTION & COMFORTABLE – Foot loop will cover the foot completely to increase double protection from wounds caused by the excessive friction and shoes. COPPER INFUSED & KEEP FRESH FUNCTION – The copper ions in the yarn can produce a natural protected area, eliminating 99% of the sweat, keep fresh in the shoes. The blended copper ion fabric is very soft, smooth and moisture wicking. It helps to get rid of embarrassing feet. MOISTURE WICKING – Provides soothes aching muscles, while the fabric maintains airflow so your feet stay fresh; Powerful moisture-wicking material with mesh venting blend keeps your feet cool and improve your feet performance, which is super comfortable for casual wear and sports activities. FOUR SEASONS & ALL SPORTS – unisex sports socks are not too thick or too thin, warm in winter and breathable in summer. Professionally customized for all sports, mountain climbing, football, hiking, running, tennis, marathon, hockey, soccer, basketball, golf, cycling, etc. The shining style socks fit any everyday dressing for adults and teenagers; Size – Medium size fits Shoe Size 6-12 US, Large size fits Shoe Size 12-14 US.