Jeans maker Levi Strauss is to close its factory in Adelaide's northern suburbs with the loss of 86 jobs.

The plant at Elizabeth has been producing jeans since 1974 for the local and New Zealand markets.

Levi Strauss says the closure of its Australian facilities on 26 November will allow it to reduce costs and put more resources into design and development.

Levi's other Asia-Pacific factory, based in the Philippines, will continue to operate as usual.