Anti-poverty campaigners will target adidas stores across the country this weekend after the Independent revealed that workers in some of the sportswear giant's factories are paid as little as 34p (66c) an hour.
Protesters plan to converge on stores and replace the price tags with new labels saying "34p - Exploitation". War on Want, an anti-poverty charity, has handed out 14,000 protest price tags to volunteers who will target adidas' own-brand stores and retailers that stock their clothing.
The German sportswear company has denied the 34p figure and claims that the workers in question earn double that figure.
The campaign to highlight low wages paid to sweatshop workers in the developing world has been bolstered by investigations in the run-up to the Olympics. Organisers say they will be the most ethical Games yet, but questions have been raised over how effective those promises have proved.
Adidas, an official Olympics sponsor, aims to make more than £100 million from the Games. In April the Independent uncovered violations of workers' rights in Indonesian factories producing adidas clothing.