ABSOLUTE SUPPORT is our private line of High Quality Compression at Value pricing. Use as directed by healthcare provider for varicose, DVT, post surgery, edema, vein disorder. Wide top band prevents sock from falling down. Knee high length extends over calf. Made of 65% Nylon, 35% Spandex; Latex-Free. Use for Prevention and treatment of leg discomfort, Edema prevention of DVT during long-distance travel and the treatment of leg swelling and vein issues. Unisex material and sizing. Measure according to size chart image. Our knitting process regulates stitch length and yarn tension while shaping the fabric to a leg model for the best fit. Measurements at precise intervals between the ankle and top band ensures our garments are comfortable and deliver an accurate distribution of the pressure gradient. ALL products are designed and engineered with your comfort in mind. Absolute support delivers physician-prescribed elastic compression therapy guaranteed. 3 PACK - Premium Opaque Compression socks are graduated firm support. The compression level is 20-30mmHg, which was crafted with the most precise sizing chart in the industry.. They will feel tighter than your average support sock. 65% Nylon, 35% Spandex.