UFF Underground offers thousands of pieces of trendy second-hand clothes from the '50s, '60s and '70s.
The clothes are gifts from people in Norway and the surplus of the sale is donated to Humana People to People's development programmes in Africa and India.
The shop is also host to UFF's new design-lable "uffo-design", taking old and worn-out garments, re-designing and re-sowing, turning them into new and trendy items.
UFF also has a family store at Jernabanetorget and another vintage store in Pilestredet.