Uniqlo profits from thermals

Who knew long johns could be a best-seller on the high street? Uniqlo, the

Japanese retailing giant, has revealed it has sold more than 400 million styles of its Heattech thermal underwear.

The company launched the thermals a decade ago in 2003. According to Uniqlo's parent company, Fast Retailing, the Heattech products are a hit with customers, which have helped the company gross over 10 billion dollars per year.