Thank you for looking! This is a lesson bag that can be used for commuting to school. It's convenient for various uses, such as an activity bag, a picture book bag, carrying books borrowed from the library, or as a supplementary bag for school. It has a wide width, so it can fit an art box or a math box. It's also easy to put things in and take them out. (The math box in the photo is 23cm tall x 32.5cm wide x 5.5cm high. There's room, so a slightly larger size will also fit. Please inquire if you have any concerns.) An A4 clear file was placed for size comparison in the photo. The stripe width is 6mm intervals. It's a navy and off-white stripe, which is easy on the eyes. (Individual differences may apply) The fabric has been pre-washed to prevent shrinkage. ☆Please be aware that dark-colored fabrics may fade or transfer color when washed. We recommend using a laundry net when washing. Please refrain from using a dryer. 〈Materials〉 Outer side… Twill fabric (navy stripe) Lower part of the outer side… 8-ounce denim Inner side… Seersucker fabric (navy) 〈Size〉 Body…… 32cm tall x 41cm wide The above size includes a 6cm gusset. Handle length…… 36cm Handle width…… 2.5cm Please allow for slight variations. ☆For reference if there are school-specified sizes. When hung on a side hook of a school desk, the length from the top of the handle to the bottom of the bag is approximately 46cm. ☆It will be shipped folded, so please be aware that there may be creases.