Our customers and Giving Partners asked for socks to keep them comfortable during long shifts, so we made a pair that works as hard as they do. Designed with a stronger elastic and tighter knit in the ankle to create more compressive support, plus our signature Stay-Up Technology to help prevent annoying slippage down your calf. We also used a combo of sweat-wicking performance yarns in the body of the sock and a Merino Wool blend in the heel, arch, and toe for an extra boost of moisture management where you need it most. Women's Targeted Compression Performance Calf Sock 3-Pack - Black - Large - Bombas