Birkenstock Boston women's EVA navy blue clogs sabots. Size 40. The adjustable strap closure ensures a comfortable fit, while the flat heel style provides stability and support for all-day wear. These sandals are perfect for any casual occasion and are a must-have for any fashion-forward woman's shoe collection. The standard shoe width and EVA upper material make these sandals durable and easy to maintain. Basically NWT because purchased for my mother and did not fit her.