Born in 1961, Oskar Metsavaht is a medical doctor (orthopaedist) who was always passionate for sports and adventure. In 1997 he created Osklen, a reference fashion store with over 30 branches throughout Brazil and specially involved in campaigns for a culture of peace.

His t-shirts with UNESCO themes (non-violence, heritage, etc.) are very popular in Brazil. Annually, Osklen provides the T-shirts of the UNESCO Criança Esperança campaign, project in partnership with Globo TV.The ethos of Oskar Metsavaht and his creative team also include the involvement with social-environmental issues since the nineties. Oskar is, for instance, the founder of Instituto-E, a not-for-profit institution located in Rio de Janeiro, dedicated to the promotion of sustainable human development. Through the institute, the e-fabrics project was developed, in partnership with companies, institutions and research centers, and it identifies fabrics and materials developed from social-environmental criteria.

He is often invited to join as a speaker about new luxury in conferences around the world, such as Milano Fashion Summit and the Ethical Fashion Paris.