- SIZE OPTIONS: Choose from three sizes to ensure the perfect fit for your needs: - M: 18.5 x 10.2 x 7 inches (fits arm sizes 10.2 to 11.8 inches) - L: 18.5 x 11 x 7.5 inches (fits arm sizes 11 to 13 inches) - XL: 20 x 11.8 x 7.9 inches (fits arm sizes 11.8 to 14.2 inches) - UPF 50 PROTECTION: Experience effective sun protection with our UPF 50 arm sleeves, which block over 99.8% of harmful UVA and UVB rays. Perfect for outdoor activities like running, golfing, cycling, driving, fishing, or working in the sun for extended periods. Enjoy your time outdoors without the worry of sunburn. - BREATHABLE COMFORT: Crafted from high-quality polyester, these cooling arm sleeves provide excellent breathability and comfort, making them ideal for summer wear. Whether you're playing baseball, volleyball, basketball, or football, these sleeves help you stay focused on the game. - VERSATILE USAGE: While primarily designed for sun protection in summer, these arm sleeves are also great for various occasions such as parties, Halloween, bars, sports events, street dancing, stage performances, photo shoots, cosplay, and festivals. They make a thoughtful gift for family and friends. - KEY BENEFITS: - Protects against sun exposure - Comfortable and breathable for all-day wear - Available in multiple sizes for a tailored fit - Suitable for a wide range of activities and events Choose our UPF 50 arm sleeves for reliable sun protection and comfort in any situation.