Truform men's dress-style support socks provide graduated compression to help energize the legs - ideal when sitting or standing for long periods. Nylon-spandex materials are soft and resemble specialty store, designer-knit socks.Rib-knit fabric: This contemporary style is suitable for business or business-casual wear. Soft top: The soft non-compressive, stay-up top is carefully designed for wearing comfort. The flexible but snug fit ensures the stocking remains in place throughout the day without constricting the leg. Knit-in heel: Knit-in, defined, reinforced heel pocket provides added durability and easy stocking orientation on the foot and leg for a proper, comfortable fit. Closed toe box: The roomy toe box applies no compression to the wearers' toes ensuring a comfortable and natural fit. The reinforced fabric protects against one of the most common areas prone to wear and tear. Extra firm: Indicated for severe swelling or lymphedema, DVT (deep vein thrombosis), post-surgery, pregnancy, severe varicose veins. Circumference: 13.5" to 16" Calf, 8.25" to 9.75" Ankle. Length: Up to 16" Latex-Free.