New And Improved Helps Provide Reliable Support To Weak Or Injured Knees Designed For All Day Comfort Support Your Active Life&Reg; Power Knit™ Material Anatomical Shape For Optimal Fit & Joint Protection Breathable, Dual-Stretch Power Knit™ Materials For Comfort Comfort Panel Reduces Bunching Behind The Knee Fits Comfortably Under Clothing Usage: This Futuro&Reg; Comfort Lift™ Knee Support Is Designed To Provide Support To Stiff, Weak Or Injured Knees. Wear During Activities Which Lead To Discomfort. Size: Male Or Female, Measure Around Kneecap For Correct Sizing. Small - 12.0 - 14.5 In (30.5 - 36.8cm) Medium - 14.5 - 17.0 In (36.8 - 43.2cm) Large - 17.0 - 19.5 In (43.2 - 49.5cm) Developed In Collaboration With A Panel Of Physicians, Surgeons And Medical Specialists. Futuro Offers A Wide Range Of High Quality Products. Each Is Designed To Offer Optimal Support, Comfort And Fit. Futuro Guarantees Its Products To Be Of The Highest Quality. If You Should Receive A Defective Product, Please Wash And Return It For Replacement Or Full Replacement Value (Please Contact The Manufacture For More Information)