The orange hat is a little stretchy and is a size Small-Medium while the black hat is not stretchy and is a size 7 1/8”. Both are NEW ERA, genuine merchandise, authentic collection performance headwear, official On-Field cap from the SF Giants. Black hat is MLB merchandise (patch on the back) and the orange hat has the GIANTS embroidered on the back. A great pair of hats for the big fan in your life.