Size and Weight
Size : 17.9" x 10" x 2" (45.5 x 25.5 x 5 cm)
Water bladder : 14.2" x 7" x 0.8"(36 x 18 x 2 cm) / can hold 2L / 70 oz water
Weight : Pack:0.66 pounds(300g) / Bladder: 5.7 oz (162g)

Compartment
Compartment : 2 main compartments
The hydration backpack includes two main compartments, one is for putting the water bladder, another bigger one is for storing your belongings, such as mobile phones, clothes, ipads, snacks, keys and wallets. It provides you with a big storage during hiking / cycling / camping / climbing / traveling and other outdoor activities.

Colors
Black, Blue, Green, Red, Orange

Material
The running hydration backpack is made of nylon fabrics which can be water resistant, thus keeping your belongings of running hydration backpack dry and cool in the rainy day. Nylon material is adopted in good-quality plus sturdy metal zippers, making sure the durability of running hydration backpack is fairly high. Water-resistant backpack makes it more durable.

Adjustable Chest / Shoulder Straps
The straps of hydration backpack are adjustable for different size of shoulders. The chest size ranges from 27" (which fits for kids and teenagers) to 50" (which fits for adult man and woman). Rubber mesh is used as the shoulder straps, which can make more breathable, meanwhile prevent slipping over your clothes. Thus, it is not only adult man / woman hydration pack, but also teenager / kids hydration pack.

Multifunctional
Hydration backpack can be used in many outdoors sports, such as running, hiking, cycling, camping, climbing, walking and traveling.

Package
The package includes a backpack u0026 2L / 70 oz wate