Totally unique, CIRLCLES are a sling back with a twist! The cut out circle vamp is truly one of a kind, while the elasticated sling back strap provide comfort. Size:41.5-45 Heel:1cm Upper: Leather Lining:Leather Sole: Manmade Brand: Pretty Ballerina Made in Spain We are happy to provide measurements and fitting advice for any style/size that you are interested in.