These are size 00 (20-21.5 cm) of the Cow Brown SUBU sandals. These are unprecedented autumn/winter sandals that can be worn barefoot when you quickly go out during the cold season. They wrap your bare feet in down-like warmth, and the brushed inner fabric and four-layer insole create an outstanding fit for the entire foot, providing a gentle wearing experience. The upper of SUBU's standard collection uses 60D nylon and is treated with water-repellent Teflon®.