What about design of knapsack backpack by Sofie Bag?
Sofie has been specialized in producing chest bag for years. Sofie Bag Co., Ltd.'s shoulder bag is various in types and styles to meet the different needs of customers. The product stands out for its good heat dissipation. Built-in latest cooling system, it can work or stand by for a long time. The product provides ample space for storage. This product is not there merely to serve as decorative or functional pieces. It can bring people joy and comfort. The product features a scratch-resistance surface.
Sofie Bag will unswervingly supply high quality laptop backpack. Get price!