A: Although affected by the epidemic, backpack custom manufacturers generally resume work late, but if the backpack is made of ordinary materials, the normal delivery time is generally about 15-20 days. If the material required for customizing the backpack of the customer is more special or a certain material is out of stock, then the specific situation has to be analyzed in detail, because some special materials need to be customized, and this year's situation is special, the specific time for delivery depends on the situation.