Boy's striped train engineer hat. Classic striped cotton engineer hat with an adjustable strap on back that fits many sizes of small heads. No engineer is complete without it. Play the part of a train engineer with this striped cotton hat. Make sure to buy enough for all your little engineers. One size. Ideal fit for 16-inches to 20-inches head circumference. While this is not a USA made hat, this engineer hat is still much higher quality than the average imported hats we have tried in the past.