I'm excited. I was only quite unsure about sizes, have me but then looked at the centimeter measurements of the head circumference in the product description and my butt wrapped a measuring tape around her head. I have measured to be accurate to the centimeter without air between tape and head. Result was S / M and it fits perfectly on my head. So it is a. For shipping I can only say good things. Have the Cap Yesterday (15:03. 9:57) ordered us it is today (16:03. 12:21) arrived. So happy to be back!