After testing new body-scanning technology in the United States, Levi Strauss is now launching the service permanently in its Japanese stores this autumn.

Using radio waves similar to the technology used to detect firearms at airport security, the IntelliFit machine accurately scans and measures 200,000 points on the customer's body in less than 10 seconds.

Unlike previous electronic measuring booths, customers can remain fully clothed as a radio wave wand passes over their bodies.

The vital figures are entered into a computer and are tallied against the customer's preference for fit and cut. A print-out is then made that provides the shopper with a selection of jeans that should fit perfectly.

All of the users' data is retained and then added to a list of customers' measurements. 

"This will help clothing manufacturers and retailers improve their fit and their operations so that they can create and stock clothes to fit real people," said an Intelfit spokesperson.

Intelifit is currently building a network of mall, airport, and department store Intelifit kiosks in the US and Japan.

The company has about a dozen scanners in stores now, but expects to have 150 installed by the end of next year.

By Michael Fitzpatrick.