The following find is about f(x)'s Sulli's shirt, worn while going to SXSW (South by Southwest). SMTOWN GLOBAL updated their twitter yesterday with this tweet about f(x) on their way to SXSW. Congratulations!
I don't understand Sulli's face, but that's ok.
Her shirt is from Mag N Mag; the Orange Printing BL_MPF132L01.
If you want it, you can buy it here for 97,200 Won.
Credits: as said and buy link
Maria :D