Birkenstock Arizona Rivet Euro size 37 per box and shoe label ( Mercari has size 37 as a 6.5 - but my listing is per the Birkenstock box label ) US WOMENS size 6 - per the Birkenstock box label please see photo US Mens size 4 - per the Birkenstock box label please see photo Narrow Fit Sandal Light Grey Lambs Wool Footbed is Natural Cork NONSMOKING Photo #1 is a stock only photo Retail is over $100 NEW IN BOX