The kids baseball caps are made of polyester with 6 ventilation eyelets, cozy and breathable to wear. It is available in different colors to match children’s daily shirts or dresses. The baseball hat will be a must-have for your kids go various places, bringing comfortable wearing all the day.This baseball cap is designed with velcro, which can be adjusted to different head sizes. Of course, we can customize different hats or add your logo.