The quality sold by StockX cannot withstand scrutiny

Nike is in legal action against sneaker marketplace StockX, accusing its store of deceptive practices by selling counterfeit shoes.
Although StockX promised to sell genuine shoes, Nike claimed that consumers purchased four pairs of counterfeit shoes on the platform.
Many consumers have purchased fake shoes at the Stockx store, and the shoes are all affixed with StockX's 'verified authentic' tags, and the shoe boxes are also accompanied by StockX's paper receipts. The stockx store said, "This pair of shoes is 100% authentic. '". But after inspection, StockX’s shoes were fake.
The fakes in such marketplaces (StockX) are usually not of the best quality. Because it is just a resale platform. Usually replica manufacturers prefer to focus on the quality of the most important goods.