Size adj. Support level moderate. Ultimate breathable material for comfort (ACE Brand's most breathable neoprene material). One size fits most. Adjustable compression. Fiber content: neoprene, nylon, spandex, polyester. Size Selection: Measure circumference around elbow. For right or left elbow. Size: adjust to fit; 8-16 in; 20.32 - 40.63 cm. Support level: moderate. Provides moderate suppotr and adjustable compression for weak, sore or injured joints. Odor-resistant. Comfort sleeve makes it easy to put on and adjust. Adjustable straps for custom compression and fit. Comfort sleeve helps prevent chafing on the inside of the elbow. Hook tab lays flat to stay secure. The Ace Brand Adjustable Compression Elbow Suppotr provides compression to stiff, weak, or injured elbows and sore muscles. www.acebrand.com. Questions? 800-537-2191. Package is recyclable. Made in Mexico by 3M Edumex.