Shanghai Ouma Biological Technology Development Co., Ltd. is specialized in developing and manufacturing in the field of bags and cases, we have over 20 years of experience, and we have developed an all-around solutions for customers in the world in the past years. Our main products are backpacks, cooler bags, and travel bags. We accept OEM and ODM requests. We have a strong R&D team that creates tens of new products every month. We have our own designer, sample maker, and engineer. We understand customers' requirements and turn ideas into reality.