Abstract: An arm sling has a neck strap that is selectively slidably secured to a first arm strap and a second arm strap. The arm sling is adapted for use in the shower and is configured to be adjusted using a single arm. Each of the arm straps has a loop and a belt. An outer surface of each loop may be covered with a first fastening portion and the belt may be covered with a second fastening portion. The first fastening portion is configured to removably connect with the second fastening portion at a plurality of locations along a length of the second fastening portion. The loop also has a securement band disposed adjacent a junction between the belt and the loop. The securement band is configured to selectively hold the belt adjacent to the loop.