This hat truly is a one size hat! It fits a toddler all the way to comfortably fitting a grown man.
From Duckworth: Made from the finest 100% Helle Rambouillet merino, this soft, lightweight and airy rib construction has plenty of stretch. Wool hats famously perform by allowing your head to breath (unlike synthetics). Prevents overheating by quickly transporting the heat to the outside and quickly evaporating. Can be worn cuffed or unfolded.
Made in the USA
100% Helle Rambouillet merino
Fabric: Hand or gentle machine wool wash. Lay flat to dry. Can be reshaped when wet.