The thieves targeted a store in Horton Plaza shopping mall at 4.45pm on Wednesday (November 28), NBC San Diego reports.
Detectives said that one suspect pretended to browse the store, while another held a shopping bag open at an underwear display. The first man scooped around 300 pairs of knickers into the bag before the men left separately.
Staff at the shop were not aware any merchandise had been stolen until the disturbed display was noticed. Around half of the underwear had been removed from the stand.
The theft was caught on CCTV, which is being examined as part of the investigation.
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