Designer and marketer of branded jeanswear and sportswear, IC Isaacs & Co Inc, on Tuesday posted a sharp rise in second quarter net profit to $500,000 from $200,000 in the year-ago period on the back of lower operating expenses. The company, whose brands include Marithe & Francois Girbaud, said sales for the 13 weeks ended June 30 fell 4.7 per cent to $16.2m from $17m in the same period of last with gross profit falling 20 per cent to $5.7m from $7.1m.