Ecommerce sales rose just 3% in August as revenue growth fell well short of 9.5% five-year average, according to the IMRG Capgemini eRetail Sales Index.

The sales increase was also below the rolling three-, six- and 12-month averages of 5.3%, 3.8% and 5.7% respectively.

Sales for online-only operators rose 4.8%, marginally ahead of the 3.5% uplift registered by their multichannel counterparts.

Clothing sales recorded the strongest growth overall, up 9.1% and bolstered by a 21.9% rise in menswear sales and a 7.3% uplift in footwear.