Reba-ko-sama, please confirm. This is the L size page. We also sell the same design in different sizes. This cover can be used for school backpacks with rounded lower corners on the flap (like those from Ikeda-ya, Grirrose, etc.), but the corners of the cover may be slightly loose. We cannot accept returns due to size or shape incompatibility after purchase, so please check the size and shape before purchasing. Other products are here: <School Backpack Body> Height: 47.0cm Width: Compatible with sizes up to 25.8cm. The height can be adjusted somewhat with the elastic, so please choose the size based on the width. <Cover Size> Height: Approximately 47.0cm Width: Approximately 27.8cm (There are individual differences due to handmade nature) ♪ Key Features ♪ ・We used high-transparency, domestically-produced vinyl fabric throughout so that the carefully chosen colors are visible. ・We have attached reflective material (reflectors) for the safety of children. ・The elastic can be replaced with your own elastic or string if it stretches out. (For backpacks without hanging hooks, tie it to the back hook.) ・The rounded corners on the top of the cover prevent it from curling up and prevent injury to the face, etc. ・Because of the nature of vinyl fabric, wrinkles and fold marks are likely to occur, so we will carefully ship it in a box. ・The front vinyl fabric is made in Japan and is 0.5mm thick, making it durable and long-lasting. ★ Notes and Requests ★ ・Due to the nature of vinyl, it is not very breathable, so if it gets wet from rain or water, remove it and dry it thoroughly before reattaching it. ・The bias tape and ribbons on the edges are not waterproof. ・We try to avoid using damaged parts and make them with care, but as a hobbyist, there may be some scratches or stains that occur during the manufacturing process, so please understand. ・The parts and patterns may vary depending on the individual item. Made by a hobbyist using a home sewing machine. There may be curved or uneven stitches, re-sewing, or double stitching. Please refrain from purchasing if you are looking for perfection or are overly sensitive.