"XS" is a song by Japanese-British singer-songwriter Rina Sawayama, released on 2 March 2020, as the third single off of her debut studio album, Sawayama, via the label Dirty Hit. The song criticises capitalism in the face of climate change over a pop, R&B, avant-pop and electropop backing. A remix featuring British artist Bree Runway, was released on 10 July 2020.