The event will be held on May 17, 18, and 19, celebrating the return of pre-loved fashion.
The pop-up store, located on Leiden Square, will feature a broad array of second hand clothing, including both menswear and womenswear from popular brands such as Nike, Ralph Lauren, and Tommy Hilfiger.
Tickets are available for visitors to find hidden gems throughout the event, with clothing rails regularly restocked.
Items are sold by weight, beginning at £5 for T-shirts and £25 per kilo.
Adding to the sustainable aspect, the shop has a cash or trade-in service for visitors looking to sell their unneeded clothes.
Brendan Hattam, centre director at Westgate Oxford, said: “We’re delighted to be partnering with ‘we are.’ to bring pre-loved fashion back to Westgate Oxford, following its success last year.
“We’ve found that sustainability is becoming ever more important for our guests, and ‘we are.’ is the perfect addition, allowing us to respond to the growing popularity of shopping second-hand, while bringing out guests a mix of premium and vintage brands at accessible prices.”
Founder of ‘we are.’ Matthew Griffiths said: “We are. Is on a journey to build Europe’s biggest second-hand sustainable fashion business. we are. has saved tonnes of clothes from landfill.
“#Join the fashion revolution!”
More details can be found on www.westgateoxford.co.uk.