Model: N5031 EL NATURALISTA Soft grain leather uppers combined with fabric straps Leather lining and insole Cork and rubber sole Elasticated panels at the side and a slingback strap with an adjustable buckle fastening for added comfort EL NATURALISTA Women's Leather Heel Sandals. An eye-catching pair of slingback sandals featuring soft grain leather uppers combined with fabric straps. Designed with elasticated panels at the side and a slingback strap with an adjustable buckle fastening for added comfort. Created by eco-friendly Spanish footwear manufacturer El Naturalista. Their collections are best known for its innovative features like cork insoles, amazing comfort, simple styling and most importantly the use of only sustainable high quality materials. Must have brand for nature lovers.