HiRui is a registered brand with Amazon.
HiRui Arm Sleeves offers incredible compression while providing full arm, lateral, and medial protection. Compression, increases the blood flow, keep your muscle warm, reducing FATIGUE, and CRAMPING. Conform to your arm and give you the maximum protection. It is ideal for outdoors basketball soccer or cycling, designed to minimize the risk of injury especially during the strenuous activities, and protection against HARMFUL UV.