Binby's schoolbag is a bit heavy because of its thick fabric and good bearing capacity. Because Binby's schoolbag itself weighs 1kg, the quality is very good. It is an upper-middle school product and is very popular with students. The fabric is made of wool and durable, with four pockets of different sizes and two net pockets on the side to prevent water cups, so Binby's schoolbag is a bit heavy.