Made primarily from a Heat Therapeutic neoprene that helps warm muscles and joints, the Neo G Open Knee Support is a Variable Compression system for an adjustable fit and blood flow safety. Adjustable and Universal size allows the support to fit either the left or right knee. Metal stays on either side of the knee joint provide additional flexible support and stability. Bound edges provide comfort and durability, particularly around the Padded Open Patella which helps with patella tracking and best fit. The Neo G Open Knee Brace is compatible with Neo G Integrated Hot and Cold products.