Fishermans Hat is Made of High Quality Pure Cotton (outside) & Polyester Lining, Soft & Comfortable to Wear, Lightweight & Not Easy to Deformation. the Adult Size is Generally 22.4 Inch-23.2 Inch & the Child Size is Generally 20.8 Inch-22.4 Inch. If You Need It, We Can Add a Separate Built-in Adjustable Elastic That Can be Worn Around Your Neck & Not Easily Blown Away by the Wind to Help Protect You From Outdoor Sun & Uv Rays. Outdoor Hat is Suitable for Tourism, Hiking, Garden, Fishing, Camping, Picnic & Other Outdoor Activities, So That You Can Enjoy a Comfortable & Stylish Outdoor Life. Our Fisherman Hats Support Personalized Customization, We Can Do Single-sided or Reversible Double-sided Print, From the Fabric Material to the Packaging Can be Customized According to Your Requir