Hydration Backpack 18L with Water Bladder 2L/3L Hiking Water Backpack

UTMOST STORAGE CAPACITY: Backpack size 18.5" x 10.5" x 6". Stay organized with 9 functional divider pockets to keep all your essentials secure. The 18-LITER main compartment is large enough for clothes, notebooks, first-aid kit, pet supplies. Built-in mesh pocket for personal valuables. Exterior upper velvet pocket for protecting glasses, cameras, cell phones. Trekking poles/water bottles fit in the side mesh pockets for easy access. INSULATED BLADDER COMPARTMENT: This hiking hydro backpack has a special separate insulated compartment for the water bladder to keep liquids cool for up to 6 hours (with ice packs), making it perfect for long hikes, bike rides, or any outdoor adventures. EFFICIENT HYDRATION SYSTEM: This 18L hydration backpack includes an UPGRADED 70 oz / 2-LITER water bladder made of FOOD-GRADE PEVA material, along with a high-flow bite valve. The mouthpiece cover protects the bite valve against dirt and damage. The 2-LITER bladder is replaceable and support