Adjustable Anti Slip Drawstring: Securely fasten the sleeves on your upper arm with an easy to use drawstring, preventing slipping or rotation during intense cycling or outdoor workouts. UPF50+ Sun Protection: Blocks over 99% of harmful UV rays to keep your arms safe from sunburn and tanning, perfect for long summer rides and outdoor activities. Cooling Ice Silk Fabric: Enjoy a refreshing, breathable feel with ice silk material that instantly cools your skin and stays comfortable even during extended wear. Stable Fit for Active Use: Designed specifically for women’s summer sports like biking, running, and hiking, these sleeves stay put without constant adjustment or pulling. Versatile Outdoor Essential: Ideal for electric bike rides, ball games, camping, and more protect your skin while staying cool and comfortable all day long. Description: These drawstring sun protection sleeves offer superior UV protection with UPF50+ fabric that blocks over 99% of harmful rays, effectively preventing sunburn and tanning. Designed with an adjustable anti slip drawstring, they securely stay in place on the upper arm during intense activities like cycling, running, or hiking, eliminating the need for constant adjustment. Made from breathable ice silk material combined with cooling technology, these sleeves provide an instant cooling sensation while ensuring long lasting comfort without stuffiness. Ideal for women engaging in summer outdoor sports, they deliver reliable, stable sun protection from arm to hand for active lifestyles. Item Name: Ice Sleeves Material: Nylon Sleeve Size at That Time: Length 48cm, Upper Cuff Width 13cm, Lower Cuff Width 9cm Size Details: Length: 48cm/18.9" (Approx.) Upper Cuff Width: 13cm/5.12" (Approx.) Lower Cuff Width: 9cm/3.54" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 Pair x Drawstring Sun Protection Sleeves