Worked Well For Me.
I broke my left humerus at a point approximately one-third the length of the bone from the shoulder.  After five months the main fracture had yet to unite and surgery was done to put in plate and screws.  For the five months prior to surgery I had to wear a plastic brace.  The medical provider gave me a large, full-length plastic brace with straps that wrapped around two pieces.  I ordered this as a complement to it and it worked well for me.  Unlike the brace issued by the medical provider, this brace was small enough so that many shirts and jackets can be worn over it.  It is also light.  Main disadvantages are that since the straps wrap around four pieces, it could be difficult to put on and shift while being worn.
Rating: 4 stars