Very nice quality leather, very sturdy. only complaint is they are fairly large on me (i'm about average, maybe a bit under). I had to make extra holes and cut off the extra on the straps. can't fully bend my arm with the larger one either. though those are fiarly easily fixable
i agree that the patterning on the left arm should be done in something more solid. Resin or metal, or harder leather. the patch work and stitching are good quality though