Police are asking for anyone who sees a cargo of stolen underpants for sale to get in touch.
The pants come in several colours and patterns
Twenty pallets containing about 25,000 pairs of pants were taken from a Polish lorry driver on Cosford Lane in Rugby, Warwickshire last month.
Police said the offenders sprayed the driver with an "unknown substance" which knocked him unconscious.
The "Jules" pants, which are worth £50,000, are described as being in several colours and styles.