Everfun Hydration Backpack 18L with Water Bladder 2L/3L Hiking Water Backpack Women Men Hydration Pack Insulated Lightweight Day Hydropack with Storage for Hiking, Biking, Running, Festival
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FREE refund/replacement until Jan 31, 2026 Learn more
FREE refund/replacement until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026
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Availability:
In Stock.
Arrives
Monday, Dec 1
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Color: Black
Size: 2L Bladder
Features
- Nylon
- Imported
- 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,runs 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 supports up to 3-LITER / 100 oz.
- SECURE YOUR ADVENTURE: The hiking bag features High-Density Nylon fabric and a Built-in Rain Cover - ideal for rainy activities. The reflective strips keep you visible in low-light conditions. A designated space for your helmet between the outer and middle pockets.
- HIKING/CYCLING/RUNNING/SKIING WITH EASE: This 2 lbs lightweight water backpack features an ultra-elastic 3D breathable padded back, adjustable chest and waist straps to provide comfort and stability for all body sizes. This day pack has got you covered for all your adventures.
Brand: Everfun
Color: Black
Material: Nylon, Polyester
Sport: Cycling, Mountaineering, Running, Snowboarding, Snowshoeing
Item Weight: 1.7 Pounds
Product Dimensions: 10.5"W x 18.5"H
Strap Type: Chest, Shoulder, Waist
Capacity: 18 Liters
Pocket Description: Insulation pocket for bladder, Side mesh pocket, Stash Pocket, Utility Pocket, Zippered mesh pocket
Number Of Pockets: 9
Tank Volume: 2 Liters
Manufacturer: EVERFUN
Item Package Dimensions L x W x H: 17.3 x 10.3 x 2.3 inches
Package Weight: 0.91 Kilograms
Item Dimensions LxWxH: 10.5 x 6 x 18.5 inches
Brand Name: Everfun
Warranty Description: 5 Year Manufacturer
Model Name: EVERFUN hydration pack 2L
Suggested Users: unisex-adult
Part Number: EF-8009-02
Style: Black - 2L Water Bladder
Included Components: 2-liter water bladder, Rain cover
Outer Material: nylon
Size: 2L Bladder
Date First Available: September 20, 2022
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Dec 1
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Beautyberry
Size: 2L Bladder
Warning: long review I’ve had this pack for a year. Used it for hiking and day trips where I want my hands free or need to bring a bit more with me. It's also great for taking to the farmer's markets, it can hold a lot. I honestly really like this bag. It has all the right pockets, it’s a good size (not for overnight trips) and is lightweight. It’s held up really well with rips, stains or broken zipper after a LOT use in the desert, forest and beach environments. I'm rough on my day packs so I'm super impressed given how inexpensive this was. I fill the water water bag, throw in sunscreen, emergency clothing, maps, an extra bottle of water, a flashlight, an emergency kit, phone with extra battery, some personal items and food! It surprisingly holds it all and doesn’t feel too bulky or heavy. Sometimes I even put in water shoes. I find it very comfortable and well balanced for such an inexpensive pack. The bag is quick drying, not truly waterproof, but it doesn’t get soaked through right away in a light rain. I’ve had no issues with the water bag leaking and the mouthpiece works fine. It’s pretty easy to fill and clean, but all of these types of bags are a little awkward. The big name water bags have given me more problems than this one has. Although at this price? A year or two of use seems pretty reasonable. I, of course, have a few complaints. The first is my ONE BIG PET PEEVE about backpacks. The water bottle pockets are ‘almost’ big enough for my water bottles. I can manage shove one in there, but it’s really difficult. Impossible if the bag is full and I always like to carry extra water. This issue isn’t unique to this pack, all of the packs I have are the same. I don’t use the oversize bottles, just the normal insulated ones. WHY can’t they make the pockets just a half inch bigger so the bottle fit?? The second improvement I’d love to see is a key clip inside one of the compartments. Maybe the clip on the outside is intended to be for keys, but I wouldn’t have my keys dangling on the outside of my pack for the day. I use it for a retractable clip with a compass. A clip on the inside would be great so I don’t have to dump and search for my keys at the end of the day. I would have liked double zipper on all the compartments, only the large one has them. Finally, the strap material could be a bit softer, but this really feel like I'm almost finding something to complain about. I don’t notice it at all unless I’m in a sleeveless shirt. If you need a really good day pack for hiking or day trips, I don't think you can go wrong with this one.
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Reviewed in the United States on July 17, 2025 by Deb
Color: Orange
Size: 2L Bladder
Update: 9/10/25 I wore it for several hours, (in extreme heat and two days in rain) at a WEC race where I walked for miles and had no cover overhead (from sun or rain.) It did not disappoint. The water repellent bag in the zipper pouch on the very bottom is a great idea. Given the packs small size, you can load it up pretty good. The straps and padding and material are all excellent. It's comfortable even with a considerable load. The pack itself is light weight. There's a strap at the chest and one at the waist if you desire to use it. I found the waist one actually helped bear the weight. My original review (before using it) is below: I might come back to give it five stars, but I haven't used it yet. I've never had one of these (of any brand) so I can't compare it to anything else. The main thing, the bladder, is constructed well and rests in an insulated compartment, (as the description says.) I will be wearing/using it a lot at COTA in Austin TX in two weeks and if there's an issue it should show up then. The breathable straps and padding exceeded my expectations. There are other pouches or pockets to store other smaller items. In the largest pocket I can carry my foldable chair. Surprise! With the bladder (two-thirds full) and the chair the entire rig weighs 10 lbs. Not bad for hiking or longer walks. If you are a runner, you won't want to pack so much, certainly not a folding chair. The materials don't look/feel cheap. The attached straps (one at the waist too if you want it) are easily adjustable. I can see where it's lacking anything. We'll see, soon enough.
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Reviewed in the United States on August 25, 2025 by J. Templin
Color: Olive Green
Size: 2L Bladder
Value for money: This hiking pack is a fantastic find - affordable, lightweight, and surprisingly durable. It's the perfect size for teenagers and fits comfortably without being too bulky. There's plenty of space for water, snacks, and essentials, and the straps adjust for a secure fit. It held up great on day hikes and weekend trips. Highly recommend for families looking for a quality pack without spending a fortune!
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Reviewed in the United States on June 18, 2025 by Melissa
Color: Olive Green
Size: 2L Bladder
Nice bag but the bladder leaks and leaves a pool in my backpack ruined my key fob and a couple more items I put inside
Reviewed in the United States on November 11, 2025 by Terrance Rencher
Color: Orange
Size: 2L Bladder
I've had this pack for over a year now. I've taken it on mostly smaller hikes. The longest hike I've taken it on its about 12 miles. Worked great. I purchased this with a 2L water bladder but I did go ahead a buy a 3L bladder to put in it as I am going to be taking it on full day hikes this summer. I like that its a smaller pack but still holds everything that I need. Perfect for a half day and full day hikes. Another feature I like about it is the chest strap sits right under my armpits and so its not squishing or making my boobs uncomfortable. We are in preparation for a 25 mile day hike in the Grand Canyon this fall and will be taking this with as I've tested others over the year of owning it too. I've very happy with it. I actually bought a second one for my spouse.
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Reviewed in the United States on June 5, 2025 by Lacey Gilbertson
Color: Cobalt Blue
Size: 2L Bladder
Loved the water hydration backpacks. We just got back from Colorado and they worked well for day hikes. Lots of extra compartments for throwing snacks in or lunch while hiking. We used the backpack raincoat once and it was easy to pull out and cover the bag and was effective. The plastic hydration bag worked well and was nice sized. But it has a flavor to it that doesn't readily resolve even with washing but it remitted with use. I didn't like that but otherwise the product is perfect.
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Reviewed in the United States on July 21, 2025 by Karen