School Lunch Cap (Antibacterial and Odor-Resistant) for Upper Grades Diameter: 28-29cm (Circular) Polyester 65% Cotton 35% I am selling this because the size didn't fit my son. It is new and unused, but has been tried on once. If you don't mind, please consider purchasing. m(_ _)m I purchased it for 528 yen including tax, but considering the commission + shipping, I've priced it at this amount (/ _ ; ) For your reference... It is sold on Rakuten for 595 yen + 290 yen shipping, so this is cheaper than that. (^ ^)