[ HIGH QUALITY MATERIAL ]: Elastic polyester fabric, good sweat absorption, comfortable and breathable. Good elasticity and abrasion resistance, effectively supports calf muscles and keeps the skin dry. [ FULL PROTECTION ]: Independent honeycomb padding and anti-collision design, lightweight and effectively disperses impact force. High stretch material fits the contours of your legs, effectively compressing and balancing leg muscles. Provides comprehensive protection for the shin and calf. [ PROTECTIVE EFFECTS ]: Ideal for people suffering from the following conditions or wanting protection against them: calf injuries, cramps, shin splints, calf strains, tendon pain, arthritis, tendinitis, stiffness, sore muscles, surgical recovery, and more. [ APPLICATION SCENARIO ]: Protective sleeves are ideal for sports such as soccer, running, tennis, squash, gym workouts, hockey, walking, and weightlifting. Size / Total Length / Upper Circumference / Lower Circumference M / L / XL Total Length: 29 / 30 / 31 inches M: 26-32 / 16-19 inches L: 28-34 / 18-21 inches XL: 30-39 / 20-23 inches M: for those under 130 lbs L: for those under 150 lbs XL: for those under 200 lbs.