What are core-spun yarns? Core-spun yarns are made by twisting fibers around an inner fiber, creating one yarn. This process is used to enhance functional properties of fabrics such as strength, durability, stretch and comfort. Core-Spun by THERAFIRM support socks consist of spandex as the "core yarn" with either CoolMax yarns (white) or anti-microbial X-STATIC/polyester yarns (black) as the "sheath" of twisted yarns around the core. The result is a support sock that is ultra stretchy, easier to put on, and more comfortable to wear.

True Gradient Compression — Core-Spun by THERAFIRM gradient compression hosiery delivers a controlled amount of pressure greatest at the ankle and gradually decreases towards the top of the stocking to promote better blood flow and assist in preventing swelling and varicose veins. THERAFIRM compression garments are 100% made in the USA.

Comfortably Cool — Core-Spun by THERAFIRM uses advanced technologies for developing products that are cool and comfortable while delivering the health benefits you need. Cool-Max or X-STATIC moisture wicking fibers create a superior wicking effect. Additionally, Core-Spun by THERAFIRM support socks are made using the patented Micro-Cool process which creates a wicking effect so moisture evaporates from the skin quickly, providing a comfortable and dry coolness.

LATEX-FREE fibers for soft, cool comfort. Reinforced, comfortable heel and toe.

Recommended for moderate to severe ankle and leg swelling, severe varicosities, PTS, venous stasis ulcerations, lymphedema and DVT prevention.

Available in 2 colors: