Beautiful bright blue sandal from Birkenstock. Size 39. I love these sandals but never wore them because they are too wide for me. I believe they are Birkoflor. Very unusual style and color. Hard to find! Experience the perfect blend of comfort and style with Birkenstock's blue sandals, featuring two adjustable straps for a customized fit. The classic cork and suede footbed offers exceptional arch support and a molded heel cup for all-day comfort. These sandals are a striking addition to any wardrobe, with their vibrant blue straps contrasting beautifully against the natural footbed.