Oxfam is the charity partner of the new music and vintage fashion festival conceived by designers Wayne and Gerardine Hemingway, and Lord March, the owner of the Goodwood estate in West Sussex.
The original shop in Broad Street, Oxford, is still there. Oxfam now has more than 700 shops throughout the UK. Wayne Hemingway said Oxfam was the "original go-to" for vintage style and a source of inspiration.
Sarah Farquhar, head of retail at Oxfam, said: "Every element of iconic fashion, design and music has passed through Oxfam’s doors over the past six decades.
"The beauty of vintage clothing is that it can be recycled and reused again and again, with a treasured item donated by one person offering endless possibilities for someone else."
The charity will also host fashion shows at the festival, which runs until Sunday and is planned as an annual event.