Abstract: A subject support system includes a sling, a clamp, and a strap coupled to the clamp. The sling includes an outer perimeter extending around and defining a support region of the sling and a visual indicator positioned along the outer perimeter of the sling. The clamp is selectively coupled to the visual indicator. The clamp is repositionable between a closed position, in which the clamp is engaged with the visual indicator, and an open position, in which the clamp is disengaged from the visual indicator. The strap coupled to the clap is configured to couple the clamp to a lift mechanism.