Features: Practical design,protect your arms from UV radiation and muscle strains,keep your arm feeling cool. Cool and breathable,fast sweat drying,cooling arm sleeve generously lets air in and keep your arms cool. Durable and elastic,high elasticity and not creep down from your upper arm,no pressure or discomfort in any activity. Widely applicable,suitable for various occasions, daily wear,running, fishing, cycling and many outdoor sports and activities. Multiple sizes and color to choose,check chart before you order. Specifications: Material: Polyester Color: Black/Diamond-blue/for Grey/Red/White Size M: Length: Approx. 41 for cm/16.14 inch Upper Circumference: Approx.10.5 for cm/4.13 inch Wrist Circumference: Approx. 7 for cm/2.75 inch Arm Circumference: Approx. 24-27 for cm/9.44-10.62 inch Size L: Length: Approx. 42 for cm/16.53 inch Upper Circumference: Approx. 12.5 for cm/4.92 inch Wrist Circumference: Approx. 8 for cm/3.14 inch Arm Circumference: Approx. 27-30 for cm/10.62-11.for 81 inch Size XL: Length: Approx. 42 for cm/16.53 inch Upper Circumference: Approx. 14.5 for cm/5.70 inch Wrist Circumference: Approx. 9 for cm/3.54 inch Arm Circumference: Approx. 30-33 for cm/11.81-12.99 inch Package Includes: 1 Pair of Sleeves note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.