For gentle support and protection, you can't beat CURAD cushion-footsocks. They support sensitive feet, yet provide the light, graduated compression that even athletes will appreciate. Overview for Curad MDS1715CWH White 15-20 mmHg Knee Length Cushioned Compression Socks: 1 Pair Size C Regular Socks. Curad's White 15-20 mmHg Knee Length Cushioned Compression Socks offers hospital-quality medical compression to help provide controlled pressure to the leg. Sizing: For length, measure from the bend in your knee to the bottom of your heel. For calf circumference, measure around the widest point of the calf.