The Sunday Afternoon Kids' Play Hat is their  #1 bestseller for a reason—kids love to play in the sun, and parents love to protect them. Sun-smart fabric and hat design keep natural-born adventurers safe and happy all the live-long day. Playproof details like a breakaway chinstrap, customizable sizing band, floatable brim, and stain resistance ensure that this hat lasts for summers to come. The back veil not only protects little necks from rays, but also allows the hat to sit comfortably in a stroller. And? Total cuteness.  Features and Specifications 51 grams, nice and lightweight, and quick drying fabric 8 cm down-sloping brim with floatable foam core (brim length depends on size) 14 cm neck veil for protecting back of neck (veil length depends on size) UPF 50+ Certified Sun Rating (mesh vents not rated) Strategic mesh ventilation on Child & Youth sizes Water Repellent/Stain Resistant Packs flat for travel SmartStrap® Breakaway Chinstrap Technology Stroller-Friendly Wearability Designed in the USA Solids: 100% Nylon / Prints: 100% Polyester Care Instructions Rinse after use, hand wash cold with mild soap, line dry, do not iron. Packing Instructions Packs flat for travel. Do not fold or crease brim Hat Sizing Chart  Small / Baby (6 to 24 months) Medium / Child (2-5 yrs) Large / Youth (5-9 yrs) 19.5" to 21.5" 20" to 22" 21" to 23" 49.5 cm to 54.5 cm 50.8 to 55.8 cm 53.3 to 58.4 cm  To measure for a hat, circle the crown of the head with string or dental floss, above ther eyebrows and ears. Use a ruler or tape measure to measure the string and compare to the sizes listed in the hat description. Upon receiving your hat, loosen or tighten the rear/internal sizing tape (if applicable) for a custom fit. Fit hat slightly above eyebrows and ears to allow front and peripheral vision, Crown fabric should remain loose. Sunday Afternoons Kids' Play Hat