RECOMMENDED FOR: Everyday activities including walking, running, hiking, biking and sports. Improve your performance and recovery quickly with the best fitting compression socks on the market. 4 ZONES OF MODERATE (15-20mmHg) GRADUATED COMPRESSION: Energizes your step and recover quickly. Helps to reduce fatigue and soreness, and minimizing swelling. Soothe tired feet and legs. PERFORMANCE FEATURES: Full arch support, ventilated flex zones, reinforced toe & heel, ultra light cushion sole, non-abrasive seamless toe closure. HIGH PERFORMANCE YARNS: Provides natural moisture management, odor control, thermoregulation and durability. SIZES: Medium/Large fits men's US shoe size 7-10, Size Large/X-Large fits US shoe size 10.5-13. Sock length fits over the calf.