(Cover) - EN Star Style - Kate Moss is ?earnest? when she is designing clothes.

The British model has created a number of ranges with UK high street brand Topshop, and has also teamed up with luxury leather goods label Longchamp for a range of bags. She launched her final line for Topshop earlier this week, which includes 97 items - some of which were her best sellers.

Topshop owner Sir Philip Green has praised Kate?s design style, insisting it is only because she worked so hard on each collection that they were successful.

"It was worked at in earnest," he told vogue.co.uk. "In the market today, product is king. You've got to have great merchandise. We've been working at it as a business to build proper ranges with proper work going into the product and Kate trying all the pieces on."

Although this was Kate?s last full range with the store, she will continue creating items for it. In future she will design limited-edition ?drop in? pieces which will appear in stores throughout the year. There are also rumours she is collaborating with Philip on an underwear range. (C) Cover Media