Are you Green ?  You should be , or at least have this rad cap !  Our favorite dad style , and the color looks amazing with the blue of our Pelican. The back has a velcro adjustable strap. And not to worry if it gets full of saltwater and sunscreen its washable ( well at least I washed mine and let it dry in the sun and it looked like new !)  Great for all seasons ! Enjoy it and Mahalo !