Sales at online fashion retailer Asos have rocketed 104 per cent to £165m in the 12 months to March 31, 2009.

Asos said it expects pre-tax profit to be ahead of expectations when it reveals preliminary results for the year ended March 3, 2009 on June 29, 2009.

Sales in the four weeks to April 24 soared 80 per cent, and the retailer said it is “looking forward to another year of strong growth”.

International sales in the four-week period rocketed 173 per cent.

In February, Asos launched branded childrenswear offer Little Asos, which will be supported by an own-label range from September.  

Chief executive Nick Robertson said: ”I am pleased to report another excellent year for Asos.

“We are not immune to the prevailing economic conditions. However, as widely reported, younger fashion is proving more resilient, internet shopping continues to gain in popularity and our international sales are being bolstered by the weak pound.

“We remain committed to becoming the market leader in online fashion in the UK and will continue to invest in the business accordingly. Whilst we are being more conservative in our planning for 2009/10, we believe the outlook is still very positive, and we look forward to another year of strong growth.”

Asos has signed new brands for this summer, including  Mango, Hackett, Gant and Mini Boden.

Asos Life, its community platform, is in beta testing at present and will launch next month.