(CNN) Can you spot a fake?

Some US Customs and Border Protection officers did -- in September, they intercepted a shipment of over over 9,000 counterfeit Nike sneakers in New York, the agency said in a news release.

The shipment of shoes had come from China and was headed to California, when CBP officers inspected it at the Port of New York/Newark.

They thought something looked off about the shoes, and submitted images to the CBP's Apparel Footwear and Textiles Center for Excellence and Expertise, the agency's trade experts.

On Thursday, the agency concluded the shoes were counterfeit and seized them. Real versions of the sneakers would have been worth nearly $1.7 million, according to CBP.

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