Upper: Organic cotton Logo V: Silkscreened print Insole: Wild rubber and other synthetic materials Outsole: Rubber from the Amazonian forest (18%) Lining: Organic cotton Made in Brazil All cotton employed by VEJA is certified organic. The organic cotton we use has, at least, one of the following certifications: USDA organic, EU organic, GOTS, and Brazilian Participatory Guarantee System.