This is an "onesho zubon" (bedwetting pants) from Mono Koto dept. The size is XL, with a belly band style. The pattern is fantasy-themed, with an all-over print of cute animals. I purchased it on Rakuten and pre-washed it, but my child didn't like it, so it's unused. The following is from the purchase site: ------------------- "Onesho Zubon" to protect against bedwetting leaks and cold stomachs Product Description During a child's potty training period, it's tough even if you know it's inevitable! Changing bedding and mats is a lot of work and can be depressing... We've created "Onesho Zubon" to solve these problems for moms and dads! Unlike previous thick, poorly-ventilated onesho zubon, we've adopted "leak-proof yet thin fabric" to achieve both breathability and comfort. Moms and dads are happy because it doesn't leak, and kids are happy because it's comfortable – it's an onesho zubon that makes everyone happy. Our onesho zubon uses waterproof coating on the outer fabric instead of the lining, eliminating the stiffness when worn and allowing the soft fabric to touch the skin. We've also prevented leaks from seams by heat-sealing waterproof tape. The stylish and cute color variations are sure to boost your child's motivation! It's also recommended to match with siblings. Color [Original Gauze Series] Fantasy Size (approx.) Belly band type XL size: Elastic width 9cm, pants length 54cm, maximum waist 48cm