This knee support brace is to fit knee circumference circumference ,Reinforced and open patella stabilizer guides your kneecap into proper position and stabilizes your ligaments,Ergonomically designed to comfortably fit your knees and avoid slippery even during the most active motions,Premium quality breathable material provides added protection against injury and dissipates sweat effectively,Effectively speeds up post-surgery recovery and relieves knee pain caused by strains, arthritis and joint effusion.