Age : Above 13 Material : POLYESTER arm sleeve uv : ice silk sleeves arm sleeve : football arm sleeve uv protection sleeves : uv sun protection sleeves arm protection : ice sleeve women arm sun sleeves men : arm toshi sleeve Package include:1Pair * arm Sleeves Size Chart:   S Size- Top Perimeter: 22cm / 8.66inch; Bottom Perimeter: 14cm / 5.51inch; Length: 38cm / 14.96inch.   M Size- Top Perimeter: 25cm / 9.84inch; Bottom Perimeter: 16cm / 6.29inch; Length: 40cm / 15.7inch.   L Size- Top Perimeter: 28cm / 11.02inch; Bottom Perimeter: 18cm / 7.08inch; Length: 42cm / 16.53inch.   XL Size- Top Perimeter: 30cm / 11.81inch; Bottom Perimeter: 20cm / 7.87inch; Length: 43cm / 16.92inch. Note: The size is measured by manual sampling, there may be an error of 1-3cm Please help to measure your mid-upper arm circumference with a soft ruler before purchasing. Applicable scenes: running, shooting, cycling, sports About The Product: 1. UV Protection: The fabrics of the arm sleeves are treated with ultraviolet light absorber that can powerfully absorb the high-energy ultraviolet and Maximum protect your arms from the sun's harmful damage. Cool sense fabric can quickly spread the heat to reduce the residence time of heat. 2. Anti-slip: with the ergonomic design, admirable silicone gel and elastic bands sewed into the arm sleeves, it's hard for them to slide out of the place and bunch up. Made of high-quality materials, durable and not afraid of hooking. 3. Fits All: Our sleeves with super high elasticity, nonrestrictive, confirm to your arm shape, allow maximum freedom of movement without falling off. High-elastic materials, good workmanship, not tight, more comfortable and relaxed. 4. Suitable for Outdoor and Indoor Sports: Designed for summer sun protection, enjoy the sun and travel. Great elasticity and breathability guarantee comfortable wearing, suits for all types of sports, such as basketball, football, soccer, volleyball, tennis, shooting, climbing, cycling, or others kinds of outdoor sports.