Xiànliàng kuǎn qiúxié shàngjià jiù bèi qiǎngguāng le.
The limited-edition sneakers were snatched up the moment they hit the shelves.
Tips
grammar
光 here is a resultative complement meaning 'completely / nothing left'. Same pattern: 吃光 (eat all up), 卖光 (sold out), 用光 (use up entirely), 花光 (spend all).
