Product Name: CW-X (CW-X) / Wacoal Arm Supporter [for Right Arm] Product Number: BCR001 Size: S Unisex Only tried on once, never actually used. Selling because the size didn't fit. Designed to support the coordinated movement of the entire arm muscles and reduce stress on the elbow. The main body is stretchy and provides a comfortable fit. Recommended for sports (running, tennis, golf, etc.) and everyday support. Please purchase only if you understand that it has been tried on once. Feel free to ask any questions in the comments.