When wearing the Milano Birko-Flor Sandals, the slightly more compact upper adds stability, perfect for hitting the hills or heading to the beach and with an adjustable three strap design, you can tailor precisely to your fit. With an original anatomically shaped footbed at the heart of every Birkenstock sandal, comfort is guaranteed. The deep heel cup cradles the heel for natural cushioning while a longitudinal arch support runs along the sides for added stability with each step. In the toe area, the raised toe bar also encourages the natural gripping motion of the feet, making the sandal ideal for prolonged walking. Produced with an easy care, hygienic PVC material with breathable fleece lining, the sandals are gentle against the skin, avoiding blisters and rubbing as you walk while creating a comfortable foot climate for strenuous physical activity. Sustainability Birkenstock constantly works to improve production processes, products, packaging and logistics. Thanks to the durability of its products, most are sustainable by nature as a high proportion of the natural materials that they use are from sustainable sources, cork, natural latex, jute, leather, wool felt, copper and brass are among these. All raw materials are also hand-picked and sourced sustainably and - as far as nature allows - are all from in Europe.