Basil Red: the women's flat sandals with a buckle and ankle straps crafted with organic fabric, made from pineapple leaf fibers This innovative material is obtained by reusing residues from pineapple cultivation. It uses the fibers from the pineapple leaves to obtain a biodegradable, renewable and cruelty-free material. Made with hypoallergenic materials and free from environmental toxins. They are breathable and anti-microbial (preventing suffocation and bad odor). They also have a moisture-wicking, cushioned EVA insole (that, along with the inclination given by the heel gives the foot arch support). Size Guide: See here the size guide for this pair of shoes. Details: Breathable, Eco-responsible, anti-bacterial and hypoallergenicStraps: Piñatex made from pineapple leaves microfibers and PLABuckle: nickel-free metalInterior: microfiber and PU laminatedSole: synthetic neolite rubberHeel height: 2 cmCarefully made in Portugal with sustainable materials and manufacturing processes, in a fair work environment.