Size information:

Material:Nylon,Cotton
Hat: Circumference is 48-54 cm, (1 cm=0.394 inch)
It fits for the Kids age 3 to 10 years old
Front Cap brim:10cm
Back Cap brim:20cm

Feature:

1.Soft and breathable polyester hat,UPF 50+ protection blocks 98% of UV Rays
2.Hat Circumference: 48cm-54cm, fits most children ages 3-10 Years Old
3.Detachable chin straps holds hat in place
4.10cm wide brim and big floppy back will help shield your kids skin and offers extra protection
5.The mesh side vents for superior airflow and internal moisture wicking sweatband for comfortable fit

Package list:
1x hat
1x whistle