Keepin' It Real Trucker Hat There's nothing wrong with being against imaginary numbers. In fact all the best people like to keep it real. You can show that off with this nerdy math design. Product InformationUp for the long haul, our standard Trucker Hat features a resilient polyester foam front, and adjustable headband for the perfect fit. - Adjusts from 17" to 24"
- Crown measures 4"
- 100% polyester foam front, 100% nylon mesh weave back
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