Invisible but Essential: These versatile no-show socks are designed to complement a wide range of shoe styles, from sneakers and oxfords to running shoes, casual footwear, training shoes, athletic sports shoes, and even business attire. Please note that they are not suitable for very low-cut shoes. Three Size Options: We offer these no-show socks in three sizes to ensure a comfortable fit for everyone. Choose from S (US Women Size 5-9, Men Size 3-5), M (US Women Size 9-13, Men Size 6-8), and L