Full-cushion hiking socks intelligently engineered for hiking comfort with Hex Tec technology– Thermoregulating ventilation to keep you cool in the summer and warm in the winter, and moisture-wicking innovation to keep your feet comfortable on all your outdoor adventures, year-round. As always, one pair purchased equals one pair donated. Men's Hiking Performance Calf Sock 6-Pack - Cosmic Mix - Extra Large - Cotton Blend - Bombas