These are only barely okay.  It's difficult to choose a size based on their chart.  If you're a border size, go for the larger size.

They probably won't last long, but my goodness they don't cost much, either.

Update (was three stars):  After wearing for a while I can say they are not very comfortable.  The straps are very thin and too short.  They've been stitched together right at the top of the shoulder and these thicker places dig into my shoulder.  These are not adjustable straps.