A shoulder harness for supporting an electronic device includes a substrate having a pre-formed curvature such that the shoulder harness is biased to an at-rest state that is concave on a bottom-facing surface. A crest portion includes at least one slit adapted to secure the shoulder harness to a fastening element on a garment or other body-worn device. A front portion is coupled to the crest portion and extends in a forward direction from the crest portion. The front portion includes a receiving opening for attachment of the electronic device. A rear portion is coupled to the crest portion and extends in a rearward direction from the crest portion.