SIZE: 48cm=18.9fits 6-12 Months, 50cm=19.7fits 12-24 Months, 52cm=20.5fits 2-4 Years, 54cm=21.3fits 4-8 Years. MATERIAL: Made of Cotton, soft, comfortable, lightweight and durable. 50+ UPF, Protect children\'s head, eyes, face, neck from strong sunlight. Easy matching for daily wearing. Various patterns to meet your different demands. Durio baby ha..