Women's Leather Barefoot Shoes Vivobarefoot Opanka Sandal W - premium sandals that hug the foot with leather straps and are made from smaller pieces of leather that are created during the production of hand-stitched shoes in Portugal. * upper material: leather straps * lining and insole: first-class leather tinted with natural harmless dyes * increased sweating may cause staining of the soles of the feet * 3 mm thick TPU rubber + leather parts * heel strap equipped with an elastic part * barefoot sandals, sandals, summer shoes