If you are between sizes, we recommend you choose a size above your usual one. Upper:J-Mesh (cotton 67% and jute 33%) Pannels:Vegan suede and coated canvas Logo V:Coated canvas Insole:Amazonian rubber (10%), bio-based E.V.A.* (sugar cane 41%), recycled E.V.A. (10%), organic cotton (16%) and others (13%) Midsole:Bio-based E.V.A. (sugar cane 52% and others 35%) Outsole:Amazonian rubber (12%), silica mineral (30%), synthetic rubber (49%) and others (9%) Lining:Tech (recycled polyester 100%) Laces:Organic cotton (100%) Made in Brazil Made from 33% jute and 67% cotton, J-Mesh is a resistant fabric, offering antistatic, thermoregulatory, and breathable properties. *Ethylene vinyl acetate