Zhongshan Sunrui Co. Ltd, 25 years experiences of producing waterbladders, waterproof bags,travelling & outdoor facilitie, exported more than 100 countries like USA, Mexico, Canada, Spain, Russia, Singapore, etc. We hope to have a long-term cooperation with every customer.What we offer: 1) Good quality control2) Highly competitive prices 3) state-of-art technology products4) Best professional RND team.5) Smooth communication6) Effective OEM&ODM service