Asos sales soared 86 per cent year on year for the seven weeks to January 20.

Sales for the 42 weeks to January 20 rocketed 88 per cent year on year.

The retailer reported pre-tax profits for the year to March 31 were “likely to be significantly ahead of market expectations”.

On January 20, the online fashion retailer had 1.7 million registered users.

Asos chief executive Nick Robertson said: "We had a cracking Christmas. Sales were ahead of internal forecasts, margin remained strong and our stock position healthy. I can confirm that we experienced no major delivery issues in the run-up to Christmas.”