The gray leggings are from Uniqlo, and the black ones are from Nishimatsuya. The designs are very similar, lol. Both are simple, so I think they're easy to use! I think they can still be used since it's still hot and humid. Both have names written on them due to use at daycare, but I will ship them as is. They are size 90, but I'm selling them because they were tight on my child, who has a big belly. I think there might be other children like that, so I'm listing them as size 80. * Will be shipped with waterproof packaging. * Please refrain from purchasing if you are sensitive to items stored at home. - Color: Navy, Gray - Size: 80-90cm - Design: With pockets - Material: Cotton blend Thank you for looking.