Sturdy, bright colors, shrink-proof, always staying up, very durable and fadeless. Suitable for training, working and casual wearing. Size fits for women shoe sizes 7-13 or men shoe sizes 6-12. Material: Polyester fiber. Over the calf/Knee high and solid pattern. Individually wrap each pair of socks. Excellent choice for athletes in sports like baseball, basketball, football, softball, volleyball, hockey, rugby, running, soccer, squash and other sports activities. Also well match cheerleader and school uniform. And its durability makes it a good sock for working.