Breathable nylon fabric, ultra-thin and stretchy, elastic perspiration, fresh air can naturally circulate, making your arms more comfortable and cool.Wear arm sleeves, which can effectively adjust itself, fix , relieve internal circulation, muscles from damage, keep warm and absorb sweat, and eliminate moisture.Ergonomic design, according to the contour of the human arm, the structure is tightly fitted and the force is evenly applied, the high elastic bending is more comfortable.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.Activities: basketball, football, volleyball, tennis, badminton, table tennis, golf and other physical combat sports, general sports can also be worn.Various usages: It can be applied to match different clothes, suitable for cycling, riding, fishing, drving, climbing, running, jogging, training, travelling and most outdoor activities.Ultra high anti-UV protection rate, completely block UV damage, keep away from freckles, dark spots, dullness, peeling and so on! Effective design: It can not only secure your arms from the harsh sun., but also make your sleeves cooler than your bare skin, comfortable to wear.Notes:1. Due to manual measurement, please allow 1-3cm error.2. Due to shooting light and difference between different monitors, the pictures may not reflect the actual color of the item.3. And contact me if you have any problem,I am always here to wait you.