Baby Banz Hatz were originally designed in Australia for one of the world’s toughest UV environments. Baby Banz Hatz have been clinically tested to Australian Standards for Fabric UV protection and have a UPF rating of 50+. The hat is adjustable to fit a range of sizes.Baby Banz fit 0-2 years old ( upto 19" head circumference )and Kidz Banz fit 2-5 years old ( upto 22" head circumference ). This item is not available for Express shipping, Canadian or International orders.