The Incrediwear Knee Sleeve accelerates recovery and relieves pain for those suffering from acute or chronic joint injuries and conditions. The Knee Sleeve can be worn during and after activity to provide pain relief and post-activity recovery. For best results, wear the Knee Sleeve to alleviate symptoms associated with: Arthritis, Tendonitis, Joint pain, Sprains and Ligament injuries. Sizing: Measure the circumference of your thigh 10 cm. above the top of the knee. If your measurement falls in between sizes, choose the smaller size. (Package contains one sleeve) M (30-35 cm) L (35-41 cm) XL (41-46 cm) XXL (46-56 cm) XXXL (56-66 cm)