Shares in footwear operator Deckers Outdoor Corporation fell sharply after a gloomy fourth quarter forecast took the gloss off the company's second quarter profit.

The California-based owner of the Ugg, Teva and Simple brands posted a net profit of US$2.9m in the three months ended 30 June, compared to a loss of $3.8m last year.

Net sales were up 12.5% to $102.5m, boosted by a 36.8% hike in international revenues and buoyant sales for the company's sought-after Ugg boot, which rose 22.9% to $77.4m.

Deckers said it expected third quarter revenues to rise 14% on last year, with earnings per share poised to increase 10%.

But the company was more downbeat about the prospects for the fourth quarter, forecasting a slight decrease in revenues and a 4% drop in EPS.

It blamed it on a shift in shipment dates for the Ugg brand.

"Our second quarter earnings were ahead of our guidance primarily due to lower than projected operating expenses, a shift in certain marketing expenses to the second half of the year and, to a lesser extent, higher sales," said company president, CEO and chairman Angel Martinez.

Second quarter sales for Deckers' Teva brand fell 10.6% to $22.6m, while Simple revenues slumped 25.2% to $3.5m, Deckers said.

E-commerce revenues decreased 18.1% to $5.3m, but retail sales doubled to $6.1m, mainly because of new store openings.

Same store sales were up 8.4%.