Jack Wolfskin, Germany's dominant domestic outdoor clothing and equipment brand, saw sales increase 21% in its 2010 fiscal year.

Revenue rose to €304 million ($414 million) in the year ended Sept. 30 from 251 million a year earlier, the Idstein-based company said in an e-mailed statement sent to Bloomberg News. Jack Wolfskin, which didn't report any profit figures, forecast “significant double-digit growth” this year at “roughly” the same level as fiscal 2010.

Sales at Jack Wolfskin have grown more than 10% for seven consecutive years. Media reports surfaced last summer that several private equity firms were interested in acquiring the brand, which is owned by Quadriga Capital and the private-equity arm of Barclays Plc.

“We were able to build on our market position in all countries,” Chief Executive Officer and co-owner Manfred Hell said in the statement. Stores will be added in Asia, the U.K., France and other countries this year to spur growth, he said.