Vulkan Classic Tennis Elbow Support with Strap 75% neoprene, 25% nylon compression sleeve for the elbow, breathable Aerotherm lining provides warmth during recovery to help speed healing Adjustable strap lets you control the tension and compression on your arm, use the sleeve on either arm with or without removable strap Ideal for those with tennis elbow, golfer's elbow, weak elbows, injured, elbows, and elbows with arthritis, and protects against future sprains or strains Protection and support during rehabilitation and recovery for tennis players, golfers, other athletes, assembly workers, and people with elbow injuries