Accidentally losing one or both shoes. It usually occurs with pumps, flip-flops, and other unfastened low-cut shoes, especially when running or kicking.
Only use this tag when the shoe is in the image and has clearly fallen off its wearer, as in post #2794770 or post #2809261. If a character's shoes appear to have been removed intentionally, as in post #2251037, use unworn shoes instead. If a shoe has not fallen off but is hanging from its wearer's toes, as in post #2925344, use shoe dangle. If the shoes aren't visible, simply use no shoes.