Feature:
Durable Material
Backpack is made of 600D Oxford fabric, and 420D nylon fabric for bladder bag, waterpoof and durable.

Detachable Design
This is a 2in1 Bag: 1 water bladder bag for water and 1 storage backpack for other belongs. It is easy to remove and wash.

Food grade Nozzle
The food grade nozzle has switch and dust cover, which ensures safety and convenience.

Adjustable Strap
Both the length and the height of chest strap can be adjusted when needed. Adjustable shoulder straps help tailor the hydration pack.

Breathable Back Mesh 
The ergonomic design makes your back more comfortable. The soft, breathable mesh pad on the back keeps your back cool and dry

Heat Dissipation Hole
Heat dissipation hole at the bottom of backpack is a great way of water heat dissipation.

Odorless Both the bladder and hose are made of premium TPU food-grade material, 100% BPA free and odor-free, safe and reliable material to store water as it won’t leave an odor taste in your water.	Leak-proof Design Molded with high-tech, seamless body and auto on/off design ensures it won’t leak in your backpack. TPU material features incredibly strong stretching performance, able to stretch up to 8x its original size without breaking, which is a plus to its durability and leak-proof performance.	Easy to Sip Water The simple bite valve design allows you to take a sip of water without effort, and the self-sealing bite valve that automatically closes after each sip prevents water from trickling down your shirt or coat.

Specification:

Package Included:
1 x 3L Backpack 
1 x Water Bladder Bag