Armarium, the service that lets women borrow current, luxury ready-to-wear and accessories, today partners with luxury e-tailer Net-a-porter and unveils a new web site.

The service, which started as an invite-only app in April, expands its full functionality to its web site and is open to all users. For customers who want to buy something to go with their borrowed pieces, Armarium links to the Net-a-porter website.

“The service pairs a shared-economy business model with traditional e-commerce, acting as a complement to full-price investment pieces like the perfect investment trouser, well-tailored trench or avant-garde stiletto,” said Armarium cofounder and chief executive officer Trisha Gregory. “The Net-a-porter partnership reinforces the industry support and shows that the shared-economy and full-retail e-commerce businesses can work to complement each other, providing a unique styling service for our clients and incorporating a new way to shop — mixing high and low and bought and borrowed pieces.”

The price range for items on Armarium is about $50 to $900, with the average being about $450 for rtw. Customers rent for a four-day period, which can be extended.

Armarium’s Style Brigade, which is a network of 35 fashion stylists available for hire through the platform, chose the Net-a-porter collection. Members include Micaela Erlanger, Meredith Melling and Valerie Boster, Shiona Turini, Cristina Ehrlich and Natalie Joos.

Gregory, who is the former head of public relations at Salvatore Ferragamo North America, cofounded the company with Alexandra Lind Rose, who worked in the fashion industry for more than 20 years. Armarium has raised $1.75 million in seed funding from angel investors including Metamorphic Ventures; Carmen Busquets, former cofounding investor of Net-a-porter; Dee and Tommy Hilfiger, and others.