Make the high-tech look of the Dreamliner your own. Carbon fiber - the low-density material used in the innovative 787 Dreamliner - is the inspiration behind this one-of-a-kind hat. Features sporty textured fabric with carbon fiber-look printed panels. Lightweight and breathable, yet structured with a comfortable elasticized flex fit (no clasps or snaps). Embroidered with Boeing logo. Made of 100% polyester. One size fits most.