Avarca Women's Yellow Leather Slingback Flat Sandals Slip On US 5.5 EU 37 UK4. The Avarca Women's Yellow Leather Slingback Flat Sandals in US size 5.5, EU size 37, and UK size 4 are a stylish and comfortable option for women looking for a slip-on sandal. The solid yellow color and leather lining make them perfect for travel or casual occasions in the summer and spring seasons. The rubber outsole provides durability, while the ankle strap adds a touch of flair. The Avarca brand ensures quality and the stitched accents add a unique detail to the design. These flat sandals are a fashionable and practical choice for any wardrobe.Made in Spain