Leading clothing group Guess? Inc on Wednesday revealed it swung to a fourth quarter loss as it was hit by restructuring charges and an 8.7 per cent slide in net revenue to $167.4 million from $183.4m in the year-ago period. The California-based company posted a net loss of $4.6m versus a year-ago profit of $1.4m due to restructuring, impairment and severance charges of $8.5m. Excluding the charges, net profit was $1.7m.