The new Material Girl line of clothing designed by Madonna and her daughter Lourdes, and launched at Macy’s stores earlier this month, is facing a trademark battle.

A lawsuit filed last week by California clothing company LA Triumph Inc says it has been selling clothes under its own Material Girl brand since at 1997. And it claims Madonna’s line creates “deception” in the marketplace.

The company wants the singer and her company to hand over profits from the line.

Launched as part of a joint venture deal with Iconix Brand Group, The Material Girl collection includes back-to-school, footwear, handbags and jewellery, priced from US$12 to $40.