Sun hat girl boy, made with UPF 50+ to protect your face and neck from UV rays, sun hat head circumference: S: 55 cm / 21.6 inches, L: 60 cm / 23.6 inches. Wearable head circumference: S: 52-55 cm / 20.4-21.6 inches, L: 56-60 cm / 22-23.6 inches.<br> cap with neck protection Breathable mesh patchwork, the mesh design on both sides of the crown is used to cool the airflow through the crown, keeping you cool and comfortable. quick-drying polyester fabric is lightweight, breathable and easy to clean, with a breathable mesh lining that won't tickle hair and double breathable for more comfortable wear.<br> The brim hood and detachable neck cap, with 7cm brim and 21cm cape, protects your face, ears and neck from the sun's rays and can be paired with a baseball cap or fisherman's hat for a variety of occasions.<br> The brim is foldable and can be folded to fit into a small bag for easy storage, with a velcro closure on the back for easy tearing and size adjustment, and reflective strips for safety at night.<br> Available in two sizes, suitable for men women boys girls, the visor can also be used as a parent-child hat to increase parent-child bonding, perfect for running, fishing, hunting, cycling, camping, hiking, trekking, gardening, safari, traveling, courier, beach or backyard fun or more outdoor activities.