One of the most important skills of dressing for summer is protecting kids' heads on sunny days. The classic Reima Rantsu hat with its high UPF 50+ is designed to protect small heads from sunstroke. This style protects your child's delicate skin at both the face and the neck. The fast lock and strings keep the hat in place and make sure it won't get lost in the wind. Please note: When the fabric is wet or stretched, the protection might decrease. For safe play in the sun, kids should always use sunglasses and have their bare skin areas protected with sunscreen lotion.