When you are out on the trail, timely replenishment of water is very important. But in many cases, you may be reluctant to stop and unload backpack to take out the water bottle; or in some intense exercise occasions, do not allow you to get a bottle and distract you, at this moment our hydration backpack absolutely is your best choice. It comes with a hydration bladder which frees your hands, you can drink by simply biting the mouthpiece. While your other items can be put into the backpack without having to carry extra bag. It will be your best companion for riding, hiking, climbing, hunting, fishing and canoeing.<br><br><b>The unique features of our backpack:</b><br>- With stylish and sleek appearance, the streamlined design matches the natural curve of the body. The main bag can hold either large or small opening water bladder, compatible with most of the bladder on the market. We equip with large opening bladder as it is easier to fill water, ice cube and to clean. The shoulder, chest and waist straps can all be adjusted to your comfortable size and keep the backpack close to your back without swaying. Three breathable mesh pads at the backside make rapid perspiration, while even the weight to your back make for ultra relaxed carrying.<br><br>- Two front pockets are used to place personal items: T-shirt, towels, toiletries, gadgets, etc. The MOLLE suspension system expands to attach more items.<br><br>- The cloth, buckle, zipper and webbing are all made from the high-grade material to ensure the strength and durability of the pack. Cloth is water resistant processed to secure your gears inside. You can rest assured to use it in various harsh occasions.<br><br>- 2.5L leak proof water bladder: You no longer need to hold the long hose to fill water, just detach the hose to fill water easily. TPU Material is much more bending resistant and cold resistant than ordinary PVC material.