The Physiologix Essential Elbow Support Large provides lightweight, breathable, and durable support to help prevent re-injury. Its ergonomic design offers uniform support and compression, while the 360° stretch and contour design prevent slippage and ensure a proper fit. The re-enforced edges add to the product's durability. Please note that sizes are for guideline purposes only and may vary slightly. Measure around the elbow to determine your size. The available sizes are: Small (7-10 inches), Medium (10-12 inches), and Large (12-13 inches).