Ed Howell has left his post as global president of Columbia Sportswear's Sorel division with immediate effect.

Sean Beers, director of operations, and Mike Prendergast, national sales manager, will continue to manage the Sorel team while a search is conducted for a successor

Columbia also said Bill Berta has been appointed as national sales manager (footwear) to direct US sales efforts for Columbia branded footwear.

The company has launched a search for a VP - footwear to manage global footwear design and merchandising.

Berta has been general manager in Columbia's footwear division since 2001.

The Sorel division specialises in utilitarian footwear and apparel for outdoor industrial and recreational use.