Zumiez Inc. reported sales for the four-week period ended Feb. 28, 2015 increased 11.6 percent to $54.0 million, compared to $48.4 million for the four-week period ended Mar.1, 2014. The company's comparable store sales increased 6.9 percent for the four-week period compared to a comparable store sales increase of 2.0 percent in the year ago period.