Wear arm sleeves, which can effectively adjust itself, fix protection, relieve internal circulation, protect muscles from damage, keep warm and absorb sweat, and eliminate moisture. Lycra fabric, high-breathable Lycra fabric, innovative 360anddeg; package, comfortable and breathable, elastic perspiration, fresh air can naturally circulate, making your arms more comfortable and cool. Ergonomic design, according to the contour of the human arm, the structure is tightly fitted and not worn, the force is evenly applied, the high elastic bending is more comfortable, and the wearing is not easy to slip. Made of Lycra fabric, soft and comfortable, sunscreen, warm, breathable, soft, comfortable and lightly integrated The soft silicone anti-slip strip prevents the arm from sliding down during movement and provides concentrated pressure on the guard to relieve stress. The flat four-needle and six-wire combination makes the hand feel smooth and reduces the discomfort of human body wear. Name: Sports elastic arm guard Packing: single pack Color: black - gray / black - green / white / red / blue Size: M, L, XL Ingredients: Lycra fabric Use activities: basketball, football, cycling, volleyball, tennis, badminton, table tennis, running and other physical combat sports, general sports can also be worn. Specifications: The fabric is made of elastic weft knitted fabric, soft and comfortable, with Lycra ingredients, moisture wicking The upper mouth adopts silicone anti-slip strip to effectively prevent falling off during exercise. Sporty arm guard, designed for sports How to choose the size that suits you, because each person has different tightness and comfort, this size is for reference only. Size Description: M: total length 38CM on the circumference of 23-27CM, the circumference of 13-15CM is suitable for weight less than 60 kg L: total length 39CM upper circumference 25-29CM lower circumference 15-18CM suitable for weight less than 70 kg XL: total length 40CM upper circumference 27-32CM lower circumference 18-20CM suitable for weight 70 kg or more Package Included: 1 x arm sleeve Notes: Due to the difference between different monitors, the pictures may not reflect the actual color of the item. Compare the detail sizes with yours, please allow 1-3cm error, due to manual measurement. Please leaving a message before you give the bad feedback, if the products have some problems. Thanks for your understandings.