This is an elastic calf sleeve made of that are durable enough to last a long time. It can protect your calf and prevent you from getting injured during sports, and also can your muscle with elastic design, making you feel more comfortable. Features - Material: Polyester, Elastic Fiber, Silicone - Size( ): About 30.00X10.00X0.10cm/11.79X3.93X0.04inch; (Upper Calf Circumference): 28-32 cm/11.02-12.60 inch; (Recommend Weight): 45-55 kg; - Size(L): About 30.00X10.00X0.10cm/11.79X3.93X0.04inch; (Upper Calf Circumference): 32-35 cm/12.60-13.78 inch; (Recommend Weight): 55-70 kg; - Size(XL): About 30.00X10.00X0.10cm/11.79X3.93X0.04inch; (Upper Calf Circumference): 35-40 cm/13.78-15.75 inch; (Recommend Weight): 70-90 kg; - It can effectively prevent and protects your shanks to the large extent. - It is a professional shanks protection accessory with stylish appearance and practicality. - Great for football, basketball, handball, soccer, tennis, baseball, weightlifting or volleyball etc. - Made of breathable material, which can increase the breathability and comfort around the shanks. - Polyester, elastic fiber, silicone material, skin friendly and comfortable, it is very useful. Package list: 1 x Calf Sleeve