Shoe chain Stride Rite Corp on Tuesday announced a two per cent slip in third quarter net income to $7 million from $7.2m in the year-ago period despite a climb in sales. The Massachusetts-based firm, whose brands include Keds, Sperry Top-Sider and Tommy Hilfiger, said net sales rose to $137m from $135.4m in 2001 and added it expects full-year earnings per share in the range of 55-58 cents.