Introducing the Onyx hat, a timeless staple with a contemporary twist. Crafted in a sleek two-toned black design, this hat combines sophistication with high-performance features for the modern adventurer. * chin strap available for keeping hat on with ease- small, medium, and adult sizes * sun protective * quick drying fabric * water repelling * machine washable * 90% nylon 10% spandex *** All noggins are unique- Sizing reflects the average age hat will fit based on average head circumference at specific age. We recommend consulting our size guide and measuring for the most accurate fit.