I need help interpreting the "hat approximate sizing" chart on ebay at https://pages.ebay.com/buy/guides/apparel-accessories-buying-guide/sizingcharts/. I need to know where the dimensions referenced in the chart are relating to on the hat. Thank you for your help. It appears ebay is getting worse at providing support to their paying customers as now there is no way to contact ebay support to ask them about these kind of things.