Wrap the knee in the opposite direction with the upper and lower belts!
A sense of stability is outstanding. Belt rolled the knees from the left and right sides, Reduce blurring to a minimum.
(We called 'wrapping effect') The back part of the knee is open and breathable. Does not hinder movement by bone of special resin.
Around above the knee (Guideline):M 34cm ~ 42cm / L 42cm ~ 50cm