Leading designer of protective shoes and rainwear, LaCrosse Footwear Inc, said on Tuesday its third quarter net profit slid to $863,000 from $1.6 million last year due to softness in the retail and industrial sectors. The Oregon-based company, behind brands like Danner and Rainfair, said net sales in the quarter to September 28 plunged to $29.2m from $39.6m in the year-ago period.