45 liter hiking backpack Naturehike 45L Rock Internal Frame for Outdoor Camping Travel Backpacking with Rain Cover Ultralight Backpack for Adults : Sports & Outdoors jansale26 Deuter Race Air 10 Color:Red+3L The waterproof material is

45 liter hiking backpack Naturehike 45L Rock Internal Frame for Outdoor Camping Travel Backpacking with Rain Cover Ultralight Backpack for Adults : Sports & Outdoors jansale26 Deuter Race Air 10 Color:Red+3L The waterproof material is

Deuter Race Air 10

Small pocket on the top of the bag holds most phones and other small necessities

jansale26

Color:Red+3L

they are hard to use in very cold conditions (tube freezes, refilling is difficult if you are wearing gloves etc.) and they should be only used for storing water as other beverages might cause growth of microorganisms in the bladder and the tube

The waterproof material is durable and lightweight.