Size 40 or a size 9.5-10 I’d say I’m a 10 but there very fitting so if u always take a 9-10 these fit. I take between 10-11. Mind you these may stretch. NO BUNDLE DISCOUNTS THIS ITEM‼️‼️‼️ I believe we use call these happy shoes back in day. Black velvet flats they will go with anything Make great gift Very comfortable an love these shoes Cotton Upper Non Slip Rubber Sole Weighs Approximately 14 Ounces Heel Height 1/4" .imported. MEASUREMENTS: OUTSOLE LENGTH (HEEL EDGE TO TOE TIP OF SOLE): Size 10 = 10 1/4" I am selling these for EXACT PRICE I PAID FOR THEM MAYBE LESS