Sulli's up close classy beauty in InStyle BTS clip

f(x) Sulli's up close and sophisticated beauty was revealed in the BTS clip of her InStyle photoshoot where she posed with class featuring shoe brand 'Aldo'.

Filmed last April, the short clip displayed the classy features of Sulli wearing different shoes and clothes. It also emphasized her facial features and sharp expression during the shoot.

Meanwhile, f(x) is preparing for their participation for SM WEEK.