❶ All 3-D Knitting from Ankle to Toes: Durable, Comfortable Fit❷ Arch-Support Compression: the Knitting Method with a Patent in Japan; Less Fatigue on your foot❸ Mesh on the Instep: Breathable, Keep Dry❹ Recycled NANOFRONT™️ made from Plastic Bottle: Ultra-Fine Polyester Filament Nanofiber (the diameter 700 nm); Powerful Grip on the Sole, Anti-Odor, High Moisture Absorbency and Quick DryTABIO SPORTS Super Fit Grip Run Toe Socks use eco-friendly ultra-fine polyester filament fiber NANOFRONT™️ developed by Teijin Frontier Co., Ltd. from recycled polyester. The diameter of NANOFRONT™️ is 700 nanometers, which is 1/7500 of a hair. By knitting with the fiber, the surface area where the socks meet shoes and feet becomes larger than ever, and a soft and supple texture and strong grip are created. Since the fabric itself has high grip, they reduce the slip between not only shoes and socks but also feet and socks, and it results in an important level of power loss.All polyester fiber used in TABIO SPORTS Super Fit Grip Run Toe Socks is recycled from plastic bottles and it is sustainable.Women's (Smaller Size) Caring for Five-Toe & Two-Toe SocksThrough Tabio's production process, Five-Toe and Two-Toe socks may have threads that stick out between the toes. However, these threads are not defective; they strengthen the structure of the toe socks and help to keep the socks durable. We advise leaving them as they are since cutting these threads may cause holes and weaken the integrity of the sock.   Made in JapanMaterial: Recycled Polyester 88%, Nylon 6%, Polyurethane 6%Men's Sports SocksMen's Five-Toe Socks* The actual colors may look different from the colors in the pictures depending on your monitor, browser, the color of light, Illuminance and view angle.