The bovine leather comes from farms in Uruguay, a country known for its culture of animal husbandry and the quality of its leather. It is tanned in Brazil without using any hazardous or prohibited chemicals. VEJA uses conventional dyes that comply with regulations. Special attention is paid to water usage during the tanning process.Specifications:- Upper: Leather- Panels: Leather- Logo V: Amazonian rubber (26%), silica mineral (22%), synthetic rubber (14%) and others (38%)- Insole: Amazonian rubber (11%), biobased E.V.A. (42% sugar cane), recycled E.V.A. (11%), organic cotton (12%) and others (14%)- Outsole: Amazonian rubber (40%), silica mineral (23%), recycled rubber (10%), synthetic rubber (11%) and others (16%)- Welt: Synthetic rubber (40%), silica mineral (22%) and others (38%)- Lining: Tech (100% recycled polyester)- Laces: Organic cotton (100%)