LETHMIK Summer Fishing Boonie Sun Hat Cap Outdoor Safari Hunting Camping Hat with Chin Cord 100% High-quality Polyester. Item weight 4.5oz, very comfortable and lightweight. UPF 50+ excellent sun protection. Please Do Not Machine Wash or Brush Wash. ONE SIZE FITS MOST - This camouflage Hat size available from 7 1/4-7 5/8 (22 3/4-24 inches), fits most adults head size. Unique Hasp Brim Available and Nylon breathable material on both sides Design. Comfortable and breathable lining material. PRACTICAL & BEAUTIFUL - This sun hat is equipped with an adjustable WIND ROPE,this adjustable chin drawstring can hold the hat in place on windy days,very practical and classic decoration. Keeps the sun from your face and neck and offers great protection from the damaging rays. It is perfect for any outdoor sports and activities. FOLDABLE & CRUSHABLE - High quality materials and craftsmanship, Fold-up brim material can be worn folded up or down in various cute styles while still maintaining its shape,also it can be easily carried inside your bags, You can even put it in your POCKETS (Please see the model picture). PACKABLE and Super convenient to carry and Absolutely save lots of space. LETHMIK is not the cheapest, but it is the best. LETHMIK - "let's make it" . Scroll down to the Product Description for more detail.