Made with a fine wool blend, CEP Trail Merino knee high socks are specifically designed for outdoor running, cross-country skiing and other endurance sports. In addition to preventing shin splints, these lightweight sport socks contain the calf and stabilize the ankle for increased coordination. Made in Germany. Features: • Lightweight and breathable • Breathable material keeps skin cool and dry • 20-30 mmHg graduated compression from ankle to calf and 18 mmHg consistent straight compression around calf • Padded cushioning and seamless toe closure adds protection for rubbing, blisters and hotspots Latex-free and made of: • 65% polyamide • 25% merino wool • 10% spandex - Worn once - Washed cold and line dried - Smoke and pet free home