Lesson Bag Size: 32 x 40 cm (slight variations possible) No gusset Fabric: Cotton for both the front and back (quilting not used) Indoor Shoe Bag Size: 22 x 31 cm No gusset Although it may feel thin because quilting is not used, the front uses sturdy fabric such as oxford cloth, making it a durable construction. We hope you will use it as a lesson bag or by folding it and putting it in your school bag. These items are made as a hobby by an amateur. Please refrain from purchasing if you are looking for a perfect product. Discounts are available if combined with other items, so please feel free to comment.