LaCrosse Footwear says its sales to the outdoor market declined by 20 percent in the fourth quarter of 2011 and by 2 percent for the full year, despite the launch of a new line of hiking boots and higher sales of work boots for agriculture, mining and oil exploration. The American company blamed a cautious retail environment and unfavorable weather conditions in the second half of the year. Sales of military boots were down as well. Total revenues declined by 15.9 percent in the latest quarter to $43.5 million, and net income was down to $2.2 million for the period from $4.0 million in the fourth quarter of 2010. For the entire financial year, sales were down to $131.3 million from $150.5 million, while net income showed a decline to $3.0 million from $6.9 million.