The Warnaco Group has recorded a 41% increase in second quarter profits to US$19.4m, boosted by buoyant sportswear and intimate apparel sales.

The company's net revenues for the three months to 5 July were up 22% to $503.8m, while operating income increased 73% to $48.9m.

Adjusted net income nearly doubled to $26.3m. Sportswear sales led the charge, rising 29% to $249.4m, and boosted by strong performances from Calvin Klein Jeans and Chaps.

Warnaco's Intimate Apparel Group revenues rose 24% to $172.7m, with all brands and businesses making a contribution.

The company pointed to the international development of Calvin Klein Underwear as a key contributor to growth, but also highlighted a 9% revenue increase in the US, despite the retail slowdown.

Swimwear revenues edged up 2%, thanks to strong European demand boosting Calvin Klein swim sales. However, Speedo revenues were down $1.5m.

"Our second quarter results included broad-based strength with all operating segments and geographies recording increased revenue and profitability," said Joe Gromek, Warnaco president and CEO.

"Our key expansion initiatives, including international, direct-to-consumer and our Calvin Klein businesses, continued to fuel our growth."

Gromek added that while the company was mindful of the broader macro-economic conditions, he believed Warnaco's strategy would bring more positive results.

The company increased its full-year guidance, expecting revenues to grow by 13-15%, with adjusted diluted EPS in the range of $2.80-2.90.