Thank you for viewing. This is a Columbia kids' hat with adjustable straps. ● Brand Name Columbia ● Color Olive green check pattern ● Size O/S (One Size) Kids' size Height: 10cm Head circumference (inner): 51cm Brim: 7cm Please note that there may be slight variations due to amateur measurements. ● Design OMNI-TECH specification (highly waterproof) The lining is mesh, 100% breathable polyester Chin strap Please be aware that the hat will be folded for shipping.