The Physiologix Essential Elbow Support Large is an enhanced, lightweight, breathable, and durable stabilizer that provides support while helping to prevent re-injury. It features an ergonomic design for uniform support and compression, with a 360° stretch and contour design to prevent slippage and ensure a proper fit. The re-enforced edges provide durability. Please note that sizes are for guideline purposes only and may vary slightly. Measure around the elbow for your size. Women's and men's sizes are available in Small (7-10"), Medium (10-12"), and Large (12-13").