Features: Made of polyester. Lightweight / durable / smooth. Adjustable buckle back closure, great fit for most heads sizes. One size suits most, comfortable everyday fit. Use the convenient closure to custom fit the baseball cap to adult heads and ensure maximum comfort and secure fit at all times. High-quality polyester, hint of stretch, and soft feel bring both luxurious and comfort to adult day. Protect your skin from harm uv-rays and keep your hair out of their face and eyes by wearing this comfortable baseball cap during all your outdoor activities. Breathable and sweat-absorbent, great baseball cap for softball, outdoors, hiking, running, baseball, tennis, golf, cycling, camping, fishing, traveling and more. Specifications: Material: Polyester Recommended Head Circumference: 50-60cm/ 19.68-23.62in Color: 1, 2, 3, 4, 5, 6, 7, 8 Package Includes: 1pc Adult Baseball Cap note: 1: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2: Due to the difference between different monitors, the picture may not reflect the actual color of the item.