Yoox Net-a-Porter has posted a spike in full-year sales as the group hailed increases in order numbers and active customers.

The global luxury fashion firm, which was established in 2015 following the merger of Yoox and Net-a-Porter, said net sales during the year ending December 31, 2016 were up 17.7% on a like-for-like basis to €1.87bn.

On a reported basis, net sales rose 12.4%.

Yoox Net-a-Porter hailed strong advances in the number of average monthly unique visitors, which hit 28.8m compared to 26.7m in 2015.

The etailer’s order numbers climbed 18.3% year-on-year to 8.4m, although shoppers’ average order value dipped slightly to €334, compared to €352 the previous year.

Yoox Net-a-Porter said this was mainly driven by “unfavourable exchange rate movements.”

In the UK, full-year revenues rose 2.3% on a reported basis to €269.9m.

During its fourth quarter, Yoox Net-a-Porter said net sales surged 19.2% on a like-for-like basis to €538m, but UK revenues dipped 1.7% on a reported basis to €78.2m during the period.

Yoox Net-a-Porter boss Federico Marchetti said the business “performed robustly” during the year and said the results showed the etailer could “deliver growth while investing in our future.”

Marchetti added: “The rapid execution of our Group’s combined ecosystem is laying the foundations for a leading, solid, long-term business.

“Simultaneously, we’ve exclusively launched new top brands and been the first to move into hard luxury. Mobile now accounts for almost half of our sales as the result of constant innovation and unparalleled new content and design.”