knee imobilizer guard

so i have to wear a knee imobilizer for like 5 months and ive been wearing it for like 2 months and it keeps hitting my other knee, or other thngs and this just guards it so if it bumps into something it just bounces off.

also the knee imobilizer im using: https://www.amazon.com/gp/product/B071W99MC5/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1

if your imobilizer has like adjustment railes on the sides that are 30 mm tall and 4.3 in thickness this will work