Clothing and footwear prices fell 7.8% year on year in February from a drop of 6.8% in January, according to the British Retail Consortium.
All clothing and footwear subcategories experienced acceleration in their deflation rates, with accessories, kidswear and womenswear reporting deflation above the overall rate.
Cotton prices have fallen 28% in the year to February 6.
Overall shop prices declined for the 22nd consecutive month, accelerating to 1.7% in February, after reporting a drop of 1.3% in January.
BRC director general Helen Dickinson said: “Prices in Britain’s shops continue to fall, this month by -1.7%. That’s in line with the 12-month average and has been largely driven by falling prices of non-food items. The fiercely competitive market will see retailers continuingly responding to their customers with keen prices and promotions to maintain market share.”