HSK 3
Zhè shuāng píxié hěn shūfu.
These leather shoes are very comfortable.
HSK 4
Miànshì de shíhou yào chuān píxié.
You should wear leather shoes for an interview.
HSK 7-9
Tā měitiān zǎoshang dōuhuì cā píxié.
He polishes his leather shoes every morning.