So cute! This marble blue and white bucket hat made from 100% recycled nylon, polyester, elastane and Lycra has you covered! From beach to boat to hike to a slight chill in the air. It’s a bit hard to measure this s/m sized hat, but a loose measurement across the opening of the hat (without stretching, I really tried to keep the opening as a circle when I measured) was approximately 9.5”. This hat does have some stretch. And there’s the cutest little pocket on the brim for an emergency bill or a credit card. Or even a house key. Love this hat and it’s unique marbleized print in icy blueish white and steel blue.