The material seemed thin and breathable! When I wore this hat, people often called out "Anpanman!" lol The back is elastic, so it can accommodate size adjustments. There are no stains, and I think it can still be used! Anpanman, hat, cap, spring, summer, autumn A 48cm cap with Anpanman's face printed on thin denim fabric. - Character: Anpanman - Material: 100% cotton / 80% polyester / 20% nylon - Size: 48cm - Design: Anpanman's face printed on gray fabric Thank you for looking.