Zumiez Inc. announced that total net sales for the four-week period ended February 25, 2012 increased 23.0 percent to $40.2 million, compared to $32.7 million for the four-week period ended Feb. 26, 2011. The company's comparable store sales increased 14.2  percent for the four-week period on top of a comparable store sales increase of 12.8  percent in the year ago period.