All the benefits of compression socks in a special design that's easy to put on and won't pinch! Compression socks are a great way to help improve blood circulation, reduce swelling and relieve pain. Plus, it may also lower the chance of developing post-thrombotic syndrome and some are designed to treat or help prevent blood clots from developing (deep vein thrombosis). These socks feature a pinch-resistant, easy-pull zipper for effortless on/off the knee-high length with, an open toe. These graduated compression socks are designed to be stronger in the foot and gradually diminish in pressure as they extend up the leg (23-32 mmHg). Black. Adult Size Medium (Ankle Cir 8.5"-10"/Calf Cir up to 16.5").