Various Sizes: The adjustable hat design can fit various sizes of heads with ease. Circumference: 22.1-24.4 inches. Brim: 2.75 inches. Crown: 4 inches. Adjustable&Unisex Style: Each cap has an adjustable alloy closure. So our daily caps can be adjusted into multiple sizes, fitting most people with different head sizes. The unique and adjustable design also makes the caps suitable for both men&women. Breathable&Comfortable Plus Material: Cotton material has a good absorbent function; Breathing hole design increases the permeability of the hat. DIY CAP: You can design your own personalized baseball cap and make it by yourself. It is easy to embroider or sew a patch on our baseball cap. It is definitely a good basic baseball cap to design with. Suitability in Different Scenarios: Great choice for regular daily use and outdoor activities especially like bush walking, fishing, running, hitch-hike travel, baseball, cycling, golf, tennis. SERVICE:If you have any problem with our product or service, please feel free to contact us firstly.