Great Material: The children's sun hat is made of 100% high quality quick-drying nylon fabric which is very soft to the touch, lightweight, durable, waterproof and breathable. The inner sweatband will absorb any excess sweat and the mesh vents on the side keep kid's head cooler and comfotable. It could fit some adults with slightly smaller heads as well. Elastic adjustable back band and chin strap provide a comfortable fit and keep the hat from being blown away on windy days. Also, because of the adjustable draw string, your child will be able to use this over the next few summers. Best fishing hat for kids: The summer must-have bucket hat has different colors to be choosed, it is easy to wear and pair perfectly with sunglasses, sun protection rash guard swimwear sets and sunsuits. With this sun protector cap your child will be the cutest one. Functional: The hat is packable, it can roll up to a compact size and easily stows in a bag or backpack. It is a perfect hat for child & youth playing at the beach or in the backyard, playing in the sand, go to fishing, safari, explorer, travelling, hiking, camping, tourism, gardening, boating, pool, park or any other outdoor activities.