Specification: Material:88% polyester 12% spandex Size:M,L,XL,XXL Color:As the picture shows Features:Moisture Wicking,Elastic,Sunshade Season:Spring,Summer,Autumn,Fall,Winter,Year-round Gender:Men, Women, Unisex Theme:Sports Sport Type:Fitness,Football/Soccer,Basketball,Golf,Tennis,Cycling,Bowling,Baseball Type:Arm Warmers Age:Universal Brand Name:None Origin:CN(Origin) Size Chart: Size---------Total Length------------Upper Circumference--------------Lower Circumference---------------Suitable Weight M-----------38cm/14.96"------------23-27cm/9.06-10.63"--------------13-15cm/5.12-5.91"-----------------100-120jin/50-60kg/110.23-132.28lb L------------39cm/15.35"------------25-29cm/9.84-11.42"--------------15-18cm/5.91-7.09"-----------------120-140jin/60-70kg/132.28-154.32lb XL----------40cm/15.75"------------27-32cm/10.63-12.60"-------------18-20cm/7.09-7.87"-----------------140-160jin/70-80kg/154.32-176.37lb XXL---------41cm/16.14"------------29-34cm/11.42-13.39"-------------20-22cm/7.87-8.66"----------------more than 160jin/80kg/176.37lb 1.UPF 50 UV Protection: High-quality soft tissue blocks up to 98 percent of harmful UV rays and prevents sunburn, including sunspots. No more sunscreen. 3.Alleviate fatigue:If you exercise for a long time, your arms may feel so "sour" next day. To reduce this problem, you could use this elbow protection cover to add some pressure on your forearm and elbow. Improve the cycle in your joint and muscle and reduce the strain, tension, or even pain 4.Cool and comfortable:When your hands are moving on this arm sleeve, all you can get is the ice silk feeling. Just enjoy the smooth soft cooling comfortable feeling on your finger tips 5.Perfect for all outdoor activities: Great skin protection when you're playing, driving, biking, fishing, running, gardening, soccer, basketball, tennis, etc. Fresher than bare skin.