No. 6 boots size 42 EUC I’ve worn them a handful of times. Haven’t worn boots much lately so I am clearing out my closet. I wear a size 10 shoe and these fit great. I also have a high arch and it took me forever to find the right boot to fit me and these were the ones. These are amazing boots!! Here is the website description: DESCRIPTION Our classic No.6 leather buckle clog boot. Adjustable side buckle and metal zipper closure. 5” tall shaft. Matching leather toe, heel cap, and pull tab. Mid heel base. Every clog is handmade. Certain styles may take up to 10 business days to arrive. DETAILS Water repellant leather. Wood base and polyurethane sole. 2.5" heel with 1" front platform. Handmade in the U.S. FIT & FEEL Roomier fit, great with socks. Molds to your foot with wear. Ideal for most widths. This style can start off snug, leather will soften with wear. Your heel should lift when walking. No.6 sizes are not equivalent to EU sizing. Please view our online fit guide for further assistance.