what's the sizing difference between "regular" and "large"?
CUSTOM S Hi Sara,
I bought the regular, I wear a smaller size in hats. It has a nice adjustable strap on the back to make bigger or smaller. I am able to put my hair through the back like a pony tail and that helps me in the heat. It is a very light weight hat but seems to do the job. I really like the venting on the sides. Hope this helped.
Zack W The Head Circumference for the regular would be: 21" - 22.1/4", and of the large: 23.3/4" - 25". Enjoy it! Zack.