This casual and comfortable slip on shoe fits true to North American sizing however if your foot is on the narrower side go down a half size for a tighter fit and if you dont plan on wearing socks. The leather and or vegan material upper (blue vegan)  is made from water resistant material and the rounded toe box provides a relaxed comfortable fit. The outsole is a specially developed rubber that is designed and tested to be slip resistant on wet surfaces around the boat, home and work. The removable insole will accommodate custom orthotics.