This is the L size page. We also sell this design in different sizes. This cover can be used on 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. Please note that we cannot accept returns due to size or fit issues after purchase. Please confirm 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 (Handmade, so there may be individual variations) ♪ Key Features ♪ ・We used high-transparency, domestically-produced vinyl fabric throughout so that the carefully selected colors are visible. ・Reflective material (reflectors) have been added for your child's safety. ・The elastic can be replaced with your own elastic or string if it stretches out. (For backpacks without hanging hooks, tie it to the shoulder strap attachment.) ・The rounded corners on the top of the cover prevent it from curling up and prevent injury to the face, etc. ・Due to 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. ★ Important Notes and Requests ★ ・Due to the nature of vinyl, it is not very breathable. If it gets wet from rain or water, remove it and let it dry thoroughly before reattaching. ・The bias tape and ribbons are not waterproof. ・We make every effort to avoid using damaged parts and carefully craft each item, but as a hobbyist, there may be some scratches or stains that occur during the manufacturing process. Please understand. ・The parts and patterns may vary depending on the individual item. ・This was made by a hobbyist using a home sewing machine. There may be crooked stitches, unevenness, re-sewing, or double stitching. ・Please refrain from purchasing if you are looking for perfection or are overly concerned about details.