Provides 20-30 mmHg compression grade firm support for leg calf swelling and fatigue relief. Energize your legs from fatigue and helps reduce swelling for better recovery. Helps increase leg circulations throughout the day for better movement and blood flow. 2 pairs combo pack with choice of navy, white or mix. Closed toe full length support up to knee high. The zipper helps makes putting on the socks much easier and also taking it off. Comes with Inner fabric helps protect your skin against the zipper.