Inflation eased back to 2.7% in August as retailers kept a lid on the prices of new autumn ranges while petrol pump rises slowed, official figures show.
The fall in the Consumer Price Index (CPI) from an annual rate of 2.8% in July was also spurred by a lower rise in air fares than last year, according to the Office for National Statistics.
Figures showed a month-on-month increase of 0.4%, which was the lowest August rise since 2009.
But the Retail Price Index (RPI), a separate measure calculated in a different way, rose from 3.1% to 3.3%.
The fall in the CPI rate came as clothing and footwear inflation came in at 2%, compared with 2.8% last year, at a time of year when retailers are introducing new full-price autumn ranges.
Meanwhile, petrol prices rose 2p per litre compared with a rise of 3.5p per litre in the same month last year, mirroring movements in oil prices.
Air fares were up 9.4% compared with 10.2% a year ago, with the main downward effect coming from domestic routes.