Kowtow

All of their garments are certified under the Global Organic Textile Standard (GOTS).
[Source 2016][More on Eco-Certification]

All of the products this company sells are Fairtrade certified
[Source 2019][More on Workers Rights]

A+ grade in the Baptist World Aid Australia's 'Ethical Fashion Report 2019', which grades companies, from A to F, on the strength of their systems to mitigate against the risks of forced labour, child labour and worker exploitation in their supply chains, as well as protect the environment from the harmful impacts of the fashion industry. Assessment criteria fall into five main categories: policies, transparency and traceability, auditing and supplier relationships, worker empowerment and environmental management.
[Source 2019][More on Workers Rights]