Practical & Innovative Water Bladder: This hydration backpack has a large opening for effortless filling and cleaning. It features an automatic shut-on/off valve to avoid leakage, a 360° mouthpiece with a dust-proof cap to maintain hygiene, and an ergonomic handle design for convenience and functionality. Experience a seamless and convenient drinking experience.

2L Practical Water Bladder: The hiking backpack with water bladder includes a food-grade TPU water bladder, ensuring a pleasant drinking experience. Its leak-proof automatic shut-on/off valve and sealed detection technology avoid leak risks, providing you with peace of mind.

Durable & Waterproof Polyester: The running backpack is made from waterproof 420D polyester material. It is tear-resistant and abrasion-resistant for various outdoor conditions. The brand zippers are tested 3000 times for long-lasting durability. Experience smooth and effortless use on adventures and long trips.

Your Ideal Storage Companion: The hydration pack backpack features a multi-functional storage design. In addition to the main pocket for a 2L water bag, the zippered front pocket can store wallets, tissues, and food, 2 shoulder strap storage pockets can hold a phone, notebook, and map. It includes a helmet buckle. The outer layer features elastic storage cord for attaching water bottles, umbrellas, and towels and other gear. Flexible and customizable storage keeps every item within reach.