A model poses for a photographer in the still photography in-house studio at the ASOS headquarters in London April 1, 2014. British online fashion retailer ASOS posted a 22 percent fall in first half profit, reflecting its move to step-up the pace of infrastructure investment to meet future demand. The firm said on Wednesday it made a pretax profit of 20.1 million pounds ($33.4 million) in the six months to Feb. 28, down from 25.7 million pounds in the same period last year. Picture taken April 1, 2014. REUTERS/Suzanne Plunkett (BRITAIN - Tags: BUSINESS FASHION)