"Bitty Brah have a unique drawstring allows our hats to stay put on the most hat resistant child. The drawstring can also be easily removed under the sweatband. Bitty Brah hats are water resistant and block UV rays in the snow and water. The water resistant finish allows our hats to withstand any weather condition. The adjustable nylon closure allows for a customized and more comfortable fit. The brim is made of lightweight foam allowing it to remain flexible as stay afloat in water."
Details from Bitty Brah