(x)'s Krystal represented all of the girls across South Korea for Adidas' health campaign for women! 

Krystal took part in Adidas' pop-up gym event, 'My Girls Seoul', held at Olympic Park in Seoul on the 15th. Krystal joined the training party dressed in pink, showing that she was "all in for #mygirls."

The f(x) maknae also caught the crowd's eyes with her flexibility and looked beautiful doing each move.

Check out photos from the event below!