Swedish fashion giant H&M is to launch a collection by Italian designer Roberto Cavalli this autumn. The one-off range will include a 20-piece menswear collection and 25 pieces for women, including lingerie and accessories. The collection will go into 200 stores worldwide on November 8. Global like-for-like sales at the retailer rose 7% for the second quarter. Total like-for-like sales excluding VAT rose 6% for the first six months of the year, and total sales were up 15% to SEK36.8bn (£2.7bn).