Navabi, a British retail website specialising in women’s premium plus-size fashion, has received €25 million in funding from a group led by Bauer Ventures.

The funding round also included previous investors Index Ventures, Seventure Partners, DuMont Ventures and Klaus Wecken.

The package is composed of cash and an advertising budget with Bauer Media, a magazine and website publishing business, giving Navabi access to Bauer’s 1,000 media titles including Grazia in the UK.

Research from Mintel shows more than 50% of women wear plus-size clothing and sales are growing faster than in traditional clothes shops.

Co-founder Zahir Dehnadi said: “The premium plus size market is the biggest untapped ecommerce sector and has the fastest growth rates in fashion. We are the pioneers and leaders in this market.

“We have grown rapidly over the past six years and have built an insanely passionate company. This latest fund will enable us to continue our mission of providing plus size women with the quality fashion they desire.

“The deal with Bauer Media will place premium plus size fashion firmly in the mainstream media.”

Thomas Preuß at of Bauer Venture Partners added: “Navabi is transforming ecommerce and fashion for so many women.

“This investment, for us, represents a firm belief in not only Navabi’s robust business model but also the company’s aim of providing plus size women with premium clothing apparel.”

The UK market for plus-size clothing is expected to swell to nearly £6 billion in 2015, up from £3.8 billion in 2008.