The figure is around 1/5 to 1/3 of the total. This mainly depends on the production technology. It is notable that Sofie Bag Co., Ltd. has been decreasing the proportion regarding the cost of material to the total figure. When the business was just founded, the proportion was much larger. This is because at that time, the technology in the whole industry was backward. Having developed for so many years, our technology is mature and we can control the cost of shoulder bag well. We also import advanced production equipment to increase the output while reducing the input. This also makes results. We are sure that the cost would be further reduced in the near future, in the context that the industry is developing rapidly and our company is leading the industry development.

Sofie Bag is a manufacturing company of small insulated lunch bag based in China. We boast profound industry experience and expertise. Various in styles, Sofie Bag's china bag can meet the needs of different customers. The measurements of Sofie shoulder sling bag is conducted in strict circumstances. The product provides ample space for storage. This product has the advantage of bacteria resistance. It has a nonporous surface that is unlikely to gather or hide mold, bacteria, and fungal. Constructed out of dirt-proof materials, the product is easy to clean.

The next development goal is to invest more in innovation. We will grow the percentage of sales from innovative new products and expand the product ranges to maximize profits.