If this is done by "representative", you need to look at the label and brand symbol. If the label proves that this short sleeve is made on behalf of (or other well-known brands), we also need to check whether the brand symbol is correct, whether there are spelling mistakes, distorted images, uncoordinated colors and so on. If all these meet the testing standards, then this short sleeve may be genuine.
However, if it is purchased from an unauthorized third-party manufacturer or supplier, its authenticity may not be determined. In this case, the best way is to find a reliable professional brand of pet clothing, or buy it in official website to avoid buying fake and shoddy products.
In short, if there is not enough information to prove that this Du Binquan short sleeve is genuine, it is best not to buy it, so as not to be deceived. To buy healthy and guaranteed pet clothing, dog food and other pet products, it is recommended to choose a reputable official brand and buy it in a pet shop.