Columbia Sportswear Company has hit back at counterfeiters after authorities in Thailand confiscated more than 4,700 fake Columbia products from retail outlets and warehouses.

The raids and resulting arrests are the largest counterfeit bust after Columbia this year stepped up efforts to reduce counterfeiting of its products and intellectual property.

Tipped off by Columbia's Thai distributor, the raids followed several weeks of surveillance by private investigators hired by Columbia with cooperation from several local and regional Thai law enforcement agencies.

One of the alleged leaders of the counterfeiting and smuggling operation was located and arrested near the Cambodian border.

A warrant has also been issued for the arrest of the owner of a chain of retail stores and warehouses that were used to distribute and market the counterfeit goods.

Columbia CEO and president Tim Boyle said the company intends "to take aggressive action to stop the unauthorized use of our name, designs and trademarks."

Based in Portland, Oregon, Columbia Sportswear manages a portfolio of outdoor brands including Columbia Sportswear, Mountain Hardwear, Sorel, Montrail and Pacific Trail.