Omni-shade protects against harmful UV rays, and a field sensor that absorbs a lot of sweat and reduces unpleasant stickiness. The water-repellent fabric on the brim provides a comfortable fit.In addition, it is also a design that can be linked with parents items and gaiters, so you can enjoy a parent-child setup style that will enhance the season.Adjustable fit is also possible with the adjuster belt on the back. Material: Surface: Boa fleece (100% polyester) McLorry Taffeta (100% nylon), Sweat-proof Field Sensor (100% polyester) [Size] Youth, One Size Fits All.