“SuperDoubleTM Quick Card Backpack is a new-style performance package with a bright appearance and quick and convenient storage. The original “patent quick release bottom layer”, whether you are a male or female, a newbie or a parent, can control In addition to fashion, it is easy to deal with various use situations. From the birth of life, pay attention to the general design of taste and usability.The process of nurturing life needs the most care. The Superdouble team spent a year and a half, collecting the voices of 5,000 demanders. After countless proofing and actual measurement, the card backpack was finally developed! We believe that if it can meet the most demanding use requirements, such a design will certainly bring convenience and comfortable experience to the wider community! !