Stella McCartney Footwear Size Chart Stella McCartney® Falabella Eco Alter Mat Sandal synthetic upper. Back zipper closure. Square, open toe silhouette. Chain link detailing on straps. Synthetic lining and insole. Synthetic outsole. Made in Italy. This item may ship with an attached security tag. Merchandise returned without the original security tag attached or a damaged tag may not qualify for a refund.