【Comfortable Fit with Inner Set】 Knee support with an inner layer prevents slipping and chafing. It also enhances the fit, gently and firmly supporting the entire knee area! 【Thin & Breathable, Perfect for Everyday Use】 Made of mesh material, it's thin and comfortable without causing stuffiness. Safe for everyday life and sports! 【Used by Professional Kickboxer Katsumi Sasaki】 The quality chosen by current professionals! 【Full-Open Design for Easy On and Off】 Full-open type for easy application and removal. Velcro straps allow for easy adjustment of the tightness! From Amazon. My father-in-law bought it but didn't use it. This is a new, unused item.