Founded in 1999, Dr. Jiang mainly deals in foot and spine health shoes and foot care products, among which children's products are the most popular, and also sells a range of children's products such as school bags, homework bags, rain bags and children's aprons. At present, Dr. Jiang is not only widely distributed in Hong Kong, but also opened many stores in various cities after entering the mainland market in 2007, which is very convenient to buy.
 
Dr. Kong's non-pressure spine protector schoolbag has been granted a Hong Kong invention patent, which reduces the burden on the shoulder and back through three functional designs. The middle part of the back panel of the bag is recessed to reduce the chance of the bag hitting the spine when walking. The shoulder strap is widened, and at the same time, it is combined with the fixed chest strap and pelvic pad to form an integral force relief and decompression system, so that part of the weight of the schoolbag is transferred from the shoulder to the pelvic bone, which is very similar to the design of the German ecobao and the Norwegian Beckmann. In addition, the inside of this series of school bags is also equipped with a center of gravity inner panel, which can hold the heavier books against the back and help children straighten their backs, which is a relatively rare design among soft fabric school bags.
 
In addition to the comfort and practicality of the school bag, Dr. Jiang also takes into account the safety and space practicality design. The bag has reflective material on the shoulder strap to keep kids safe, and there are mesh pockets on both sides and multi-compartment zipper layers to keep all kinds of school items in place. As a brand focusing on the development of children's products, Dr. Jiang offers a wide variety of school bags for children of different ages and preferences.
 
Although Dr. Jiang did not clearly divide the school bag product line, it was only classified by yardage size, with the S and M sizes for lower-grade and middle-to-upper grade students respectively, and the L size for senior and even junior high school students. There is little difference in the price of each yard of schoolbags, about 150-230 yuan, and the price is affordable. With the opening of additional stores in mainland China and the opening of online stores, parents in major cities can bring their children to experience offline or shop online.