Features: Shin guards, reduces tremors during contraction, and improves your show during exercise. Practical calf compression sleeves offer protections for player, utilizing foam padded technology to absorb impact and shield against injuries. Excellent gift choice for runner, fitness athletes, office workers and so on. Effective in maintaining calf stability and movement coordination during running or any activity that often makes your calves contract. Shin pad is suitable for different sports activity like running, walking, cycling, gym, basketball, hiking, football and so on. Specifications: Component: Polyamide Fibre Color: 5 Kind Optional Size: XS/Small/Medium/Large/Extraes Large(Chinese size ,follow the size chart to select please) Size: XS Length:27cm(10.63inch) Upper Circumference:18-22cm(7.09-8.66inch) Down Circumference:10-13cm(3.94-5.12inch) Size: S Length:28cm(11.02inch) Upper Circumference:22-28cm(8.66-11.02inch) Down Circumference:13-16cm(5.12-6.30inch) Size: M Length:29centimetres(11.42inch) Upper Circumference:26-32cm(10.24-12.60inch) Down Circumference:16-19cm(6.30-7.48inch) Size: L Length:30cm(11.81inch) Upper Circumference:28-34cm(11.02-13.39inch) Down Circumference:18-21cm(7.09-8.27inch) Size: Extraes Large Length:31cm(12.20inch) Upper Circumference:30-39cm(11.81-15.35inch) Down Circumference:20-23cm(7.87-9.06inch) Package Includes: 1 Pair Shin Guards note: Please allow 1-3cm errors due to manual measurement. Due to difference betweeen different monitors,the picture may not reflect the actual color the item.