Truform casual-style active wear support socks are designed to help improve circulation, invigorate the legs, and reduce leg discomfort. Graduated compression technology delivers a compressive action to the leg that is greatest at the ankle, then gradually decreases toward the heart. The amount of compression is expressed as mmHg (millimeters of mercury). The 15-20mmHg Moderate compression level is great for tired legs and minor ankle, leg and foot swelling just to name a few. Cushioned foot, moisture wicking fibers and stay-fresh finish provide all-day wearing comfort. Excellent for business-casual, or leisure activities that require comfort and support. Truform stockings, socks and pantyhose feature Graduated Compression Technology, which delivers a compressive action to the leg that is greatest at the ankle, then gradually decreases toward the heart. The amount of compression is expressed as mmHg (millimeters of mercury).