The study, which was conducted by BBMG's online research community, The Collective, interviewed 70 consumers in March and April. Research concluded that in addition to price considerations, shoppers' stagnation is also a result of them not knowing where—or wanting to spend the time—to find reliable information on a company's social reputation.
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Bemporad said brands such as Patagonia and H&M, which last month earned its fourth award from the Ethisphere Institute as World's Most Ethical Company, are working to make their sourcing more sustainable and ethical. But brands have a long way to go in educating consumers about where and how their clothing is being made.
"By communicating how clothes are designed, sourced and manufactured, brands have an opportunity to build trust and deepen relationships with their stakeholders," Bemporad said.
CNBC's parent company, NBCUniversal, is one of BBMG's clients.
—By CNBC's Krystina Gustafson.