Specifications: Brand: ROCKBROS Color: Black/White Length: 37cm Arm Ｃircumference: 20cm Cuff Circumference: 16.5cm Material: 92% Nylons+8% Spandex Suitable for: Cycling, Fishing, Running, Climbing, Outdoor SportsFeatures: 1. UPF>50, UVA<5%, effective UV blocking over 95%. 2. Made of elastic spandex, fits arm comfortably 3. 2cm wide anti-slip band at the top of the sleeve, not easy to slip off 4. Ice silk fabric, light and breathable, cool and not stuffy 5. Easy to wash without losing colour 6. Suitable for cycling, running, fishing, baske