Description: These arm sleeves are of cooling material, making you feel cool in hot summer. They help you block out ultraviolet rays in outdoor. Lightweight but not easy to tear. Just put on them and enjoy your outdoor activities in summer. Features: Made of cooling material (90percent nylon and 10percent spandex), keep your arms cool in the hot summer day, lightweight, breathable and soft. Sun protective function protects your skin from harmful ultraviolet rays and avoids sunburn in outdoor activities. Ergonomic design fits your arm well, more comfortable to wear. Seamless technique and being reinforced, durable, not easy to unravel, and tear. Stretchy enough to allow you the flexibility of movement. 2 types for different demands and styles. Suitable for hiking, cycling, running, driving, and other outdoor activities. Sweet gifts for friends, families, and employees. Specifications: Size: With Thumb Hole / Without Thumb Hole (optional) Color: Black / White / Grey / Purple / Light Blue / Pink / Beige (optional) Gender: Unisex Age Group: Adult Material: Nylon, Spandex Pattern Type: Solid Style: Active Weight: Approx. 40g / 1.4oz Note: 1. This clothing size information is just for reference only, please check the above detailed measurement to choose the correct size, and allow 1-2cm (0.4-0.8") differences due to manual measurement, thanks. 2. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. Package List: 1 * Pair of Arm Sleeves