With a 5 panel crown and mesh insert liner for slight structure, the Field Trip™ is made from 100% brushed cotton twill fabric or lightweight nylon. This ultra soft hat has a timeless look that mirrors the workwear hats of years gone by, plus it includes an adjustable plastic snapback closure. Our original fit Features an adjustable plastic snapback closure Brim arrives flat but can be curved One size fits most (58 cm)