Sosandar has posted a jump in sales following investment in its marketing strategy and broadening product ranges.

The online fashion retailer registered a 53% increase in revenue to £2.82m for the six months to September 30. The etailer posted 84% increase in sales during its second quarter and a 112% jump during September.

During the period the fashion brand invested in marketing and advertising across TV and digital billboards across escalators at key London train stations and tube stations. Marketing expenditure for the full year is expected to be “higher than previously planned” following the heavy investment.

Sosandar reported a record number of email subscriber sign-ups – increasing 224% – in September following its first TV advertising campaign.

It invested in its product teams across design, buying, merchandising and garment technology, and broadened ranges including new ranges in denim and accessories.

Sosandar joint chief executives Ali Hall and Julie Lavington said: “As expected, the accelerated investment into marketing and product is producing strong results with record months in September and October.

“We are seeing strong engagement from our ever-expanding base of loyal existing customers and this will continue to increase as our product range grows further. We are delighted with the success of our new advertising activity and the board is confident that accelerating our future growth by increased investment in marketing – especially via TV – in this financial year is the right decision for our business.

“With a widened product range offering, strong balance sheet and a broadened, aggressive and increasingly effective marketing strategy, we are confident about the full year.”