Product Description Feature: 1.SUN PROTECTION-arm sleeves (85% Polyeater & 15%Spandex), smooth material, 0 pilling, protect against UV rays effectively, Anti-UV index up to 50+, designed for outdoor sports and activities. 2. Special Mesh Design: Antibacterial and breathable fabric is used on the inner arm socket of the arm to make the arm flexion and extension more flexible. 3. High Elastic Material: The fabric is made of fine-pored cation and vitality healthy silk fabric. The low temperature will make the nylon color, but the polyester will not color, showing an irregular artistic two-color effect. 4. Breathable and Cool: With ice feel, smooth, skin-friendly, high elastic, cooling, quick dry, moisture wicking, breathable, comfortable, and lightweight. 5. Sun/UV Protection: Provide effective protection against sunburn or strong sun light. 6. Exquistie Sewing Technology: The product uses four-needle six-thread boneless technology, no extra thread and fabric, which is exquisite and practical. Instead of using silicone strips for slip resistance, use nylon fabric non-slip fabric strips. Non easy to slip off. 7. Suitable for outdoors: The sleeves are perfect for outdoors and indoors activity, keep you cool in hot summer. Specification: Material: TN18 Cationic Vent (Nylon, Polyester, Spandex) Color: Gray, Blue, Red, Yellow, Green Size: One Size Gender: Unisex, Men, Women Scene: Climbing,Training,Volleyball, Golf, Riding Weight : 42 g Features: Mesh, Breathable, Cooling, Sun Protection, Quick Dry, Lightweight, Comfortable, Elastic, Soft, Non-slip, ect. Package Includes: 1 Pair of Sun Protection Cooling Arm Sleeves