Outdoor Sport Backpack with Water Bag Storage Hydration Pocket

-Lightweight design Just about 550g -Water repellent fabric Water droplets cannot penetrate directly -3D breathable backpack system Large area of the use of breathable materials, so that the air better circulation. -Ergonomic design Close to the body and improve adhesion -Water supply system design The backpack has independent water bag fixed design. The independent water bag warehouse can make the water bag more stable in the backpack. Note: the backpack does not contain water bag -Helmet external fixation With helmet net Attach the helmet to the outside of the backpack without taking up tnternal space. -Classified storage design Reasonable distribution can take more -Night reflection Increase the safety of night sports   About backpack and water bag This product is backpack, bladder is accessories. Backpacks don't contain bladder. If you only need a backpack, please buy the 'bag only' option. If you need a backpack and water bag, please buy the 'bag + Bladder' option.