Used with some gentle wear. Unisex. From the website: Named for the Brazilian NGO that brings technical support to organic cotton farming families, these court-inspired shoes are made to make a difference. Crafted from leather sourced from Rio Grande do Sul farms and tanned according to REACH norms, the lining is made from recycled polyester and the soles are wild Amazonian rubber. • Lace-up style • Removable insole • Leather upper/recycled-polyester lining/rubber sole • Made in Brazil