The Bombas Black Socks in size M are a versatile wardrobe essential suitable for various occasions including casual, formal, workwear, and business settings. Made of a blend of polyester, spandex, and cotton, these mid-calf socks feature a seamless toe, cushioned comfort, and a Y-stitched heel for added durability. With Bombas’ signature stay-up technology and extra-long staple cotton, these crew socks are perfect for all seasons and offer performance support for activities like gym training, walking, and running. Ideal for athletes and those seeking comfort and style in their footwear.