There is a lot of grumbling on here about the randomness of Zara sizing. Just seen [[https://l.facebook.com/l.php?u=https%3A%2F%2Fwww.instagram.com%2Freel%2FCep-r3rl81K%2F&h=AT0xE6qBlWu4DMQ0MT7ZNxYNFTLdGfVEOxk1C3FQdngzPCpCDRAmEnj4xQrMHaFOMNs3b2U80kpUj0O7qiQbiutpBBkbtir9Nkl7zpTl-zWeQBkbKkAJFEJlzwTVzR3TZntKKmNN&s=1&fs=e&s=cl this]] video]] which might help! No idea how true it is, or if it's internet bobbins. Square - true to size Triangle - small Circle - big