Abstract: An arm support device for steadying the wearer's weight bearing arm and transferring weight from the arm to the torso. The device is useful over a range of activities which require supporting an implement with one arm, including but not limited to videography, hunting, marksmanship, or fishing. The device comprises a shoulder strap with a cushion mounted thereon. The strap is looped over the head of the wearer and rests on the shoulder opposite the weight bearing arm. The adjustable strap crosses over the front of the wearer's body, under the weight bearing arm, and across the back of the wearer, returning to the shoulder. The strap thereby forms a continuous loop diagonally around the torso of the wearer. The cushion is slidably mounted to the strap, and in use, is positioned between the weight bearing arm and torso. In this manner, the weight is transferred from the arm inwardly to the torso and downwardly to the opposite shoulder.