Circumference: 54cm Adjustable Fabric: 100% polyester *Sunscreen (spray or cream) can affect the condition of your cap. It is very important to remove the cap from the head when applying sun protection. About the brand Billabong, a company committed to our society and who has been focused on sustainable development for over a decade, presents a range of clothing, accessories and casual sets for children and teenagers aged from 6 months to 14 years old. Rediscover comfort and quality with these trendy products!