UPF 50+ UVA/UVB Sun ProtectionKids size: One size for toddler ages 3 to 9 w/ adjustable interior drawstring (Head measurement: 46cm, 18", Size 5-3/4 to 21cm, 20", Size 6-3/8)Women's size: One size for teens and ladies w/ adjustable interior drawstring (Head measurement: 55cm, 21-5/8", Size 6-7/8 to 57cm, 22-3/8", Size 7-1/8)Brim: 2-3/8" (kids), 4" (womens) Height: 3-1/2" (kids), 4-1/2" (womens)Occasion: Mother and daughter set verbiage embroidery fun hats, just like mom and grandma, outdoor, parks, beach party, pool party, sailing, picnics, camping, hiking, boating, excursions, gardening, walking your dogs, sun protection against harmful sun rays. Perfect for vacation and cruise attire. Fancy events, weddings, church, religious gatherings, weekend getaway. Everyday wear, day care, kindergarten, pre-k school. Easy to pack for a trip.