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CamelBak M.U.L.E. 12 Mountain Biking Hydration Backpack - Easy Refilling Hydration Backpack - Magnetic Tube Trap 100oz

Free shipping on orders over $29.99

$103.82

$ 45 .99 $45.99

In Stock

1.Color:Black


About this item

  • Air Support Back Panel: Designed with Body Mapping Technology to allow for maximum ventilation on the hottest areas of your back
  • Magnetic Tube Trap: Keeps your tube secure and accessible when you need it
  • Removable Waist Strap: Added stability when you need it
  • 3D Vent Mesh Harness: Lightweight and breathable with added cargo. Designed for all-day comfort
  • Integrated Tool Organization: Efficiently laid out storage putting everyithing you need in its proper and easily-accessible place.



From the manufacturer

5 hydration packs from the MULE family.

CamelBak Bike Hydration Backpacks

No matter the ride, we’ve got you covered. Our expanding and evolving portfolio of dependable bike packs, vests and belts fit into your action-packed lifestyle for ultimate storage and hydration that you can always count on.

Two bike riders wearing cycling hydration packs.

M.U.L.E. 12 Hydration Backpack 100 oz. in Men's and Women's Fits

What makes the M.U.L.E. 12 Hydration Backpack redesign so exciting? For starters, it's the perfect size, comes with premium hydration and has all the features to make every bike adventure awesome. In addition, we've supplied smart storage options, with an overflow pocket for an extra layer or wet rain jacket. We also supplied a removable stability belt for added flexibility and comfort. Another key addition is our Magnetic Tube Trap that works with all of our reservoir tubes. We've included Air Support Back Panel, lightweight materials, and max ventilation to keep you feeling and looking cool on the trail. Repurpose Gold Sustainability Badge: Made with recycled materials, made with safer chemicals, and designed to preserve resources and diminish disposables. Finally, our reservoir with Quicklink System ensures you get all the hydration you need on the move, with no fuss.

Mountain biker wearing MULE Evo bike hydration backpack on a twisting trail.

M.U.L.E. EVO 12 Hydration Backpack 100 oz.

Enjoy the ride with the newest update to our best-selling bike franchise. We've taken the DNA from the M.U.L.E. family and given it all-weather protection. The weatherproof, storm-ready fabric and welded seams mean you can focus on the path ahead, knowing your essentials will be kept safe from the elements. 3L Crux Reservoir Quicklink System supplies massive hydration and speedy delivery. Plus you'll have plenty of storage for gear and tools so you're prepared for anything. Our Command Center harness provides storage and unparalleled stability for those rowdy trails. Air Support back panel with body mapping technology is designed to keep your temperature from peaking as you reach peak performance on the trail. Repurpose Green Sustainability Badge means it's made with safer chemicals.

Hydration backpack highlighting air support back panel.

Air Support Back Panel and 3D Mesh

Designed with Body Mapping Technology to allow for maximum ventilation on the hottest areas of your back.

3D Mesh straps offer ventilation.

Hydration backpack highlighting air support back panel.

Air Support Back Panel and 3D Mesh

Magnetic tube trap for hydration bladder tube.

Magnetic Tube Trap

Hydration backpack shown with helmet attached.

Helmet Carry

3L reservoir or hydration bladder for hydration backpack.

3L Crux Hydration Bladder


Derek S.
September 4, 2025
The CamelBak M.U.L.E. 12 is not just a mountain biker’s companion; it turns out to be a fantastic ally for us festival-goers too. With its 12-liter capacity, it’s compact enough to navigate through crowded spaces yet spacious enough to hold all the essentials alongside a generous 3-liter water reservoir.Filling up the hydration bladder is a breeze thanks to its wide mouth opening, and cleaning post-festival is equally straightforward. The bite valve is a real winner, providing easy access to hydration, which is crucial amidst the festival frenzy. It effortlessly delivers a refreshing flow of water, keeping the party-going spirit high and dehydration at bay.Comfort is where the M.U.L.E. 12 truly shines. The well-padded shoulder straps coupled with a secure chest strap make it a comfortable wear, even through long festival hours. The ventilation on the back panel is a godsend, keeping the sweaty back issue in check as you dance away to the beats.The additional storage compartments come in handy for stashing away festival essentials. There’s ample room for snacks, a light jacket for the chilly evening hours, and even some festival gear. The pockets are well-placed and provide easy access, saving time and hassle in those moments when you just need that one item.The robust build quality means it can endure the wildness of festival adventures, protecting your belongings from both bumps and the elements. It’s a pack built to last, season after season.Though priced on the higher side, the convenience, durability, and comfort it offers make it a worthwhile investment for any festival aficionado.In summation, the CamelBak M.U.L.E. 12 has proven to be a reliable, comfortable, and highly functional hydration pack for our music festival escapades. It’s a purchase that has enhanced our festival experience, ensuring we stay hydrated, comfortable, and well-prepared as we revel in the music and festivities. Highly recommended for anyone looking to up their festival game!
Winnie Ross
August 31, 2025
This backpack is amazing! It’s the perfect size and fit for me. I recently went hiking out west for days. The weather was warm! The water stayed nice and cool in the reservoir. I was able to drink water while hiking without any disruption. I love the air support back feature. Wearing the backpack feels like I’m wearing a vest. It has multiple pockets, which make it easy to find things.
Lindsey Tyler
August 27, 2025
My family went on a two week road trip this past June hiking national and state parks through southern Utah and Arizona. We would be out hiking 4+ miles every single day and these packs were great! Holds everything you need and plenty of water being out in the desert. If I had to point out one con, it would be that I wish there was slightly more padding on the straps, but overall not a big deal. Still very comfortable to wear out all day. My 14 year old daughter has the same one in gray and also loved it. Great purchase!
Taylor
July 6, 2025
I love this pack. I use it every time I ride especially long distance. It has plenty of room for tools and snacks.
Customer
June 27, 2025
Solid total space for what this is, can fit down jacket, sunglasses case, goggles, wallet/keys, and a couple other things when needed.I was almost scared off by some reviews that complained about leakage, but seems perfectly tight to me. just reverse the threads until it clicks into place then tighten it down.One star deducted because the straps could be a little better. They're not uncomfortable and I don't notice them at all, but when you're putting it on it takes a second to make sure they're not twisted which seems like it would have been easy enough to engineer against
Rachael Hendrickson
April 19, 2025
Got this as a gift for my fiance and he absolutely loves it. It's the perfect size to carry your belongings and your water. It's designed very well and is high quality.
Age315
April 16, 2025
I bought this for mountain biking and it's been the perfect size that I also use it in the winter for snowboarding. The only thing I changed was a water hose with a cover mainly for the winter because the water in the line will freeze going down the mountain if it's cold enough. Going on year 5 and it's still in great shape.
Customer
January 4, 2025
Camelback Mule 3L Hydration Pack:A quick look at this mid sized pack shows that thought was put into the design and manufacturing. It is the small details that show the quality.1) The pictured clips only insert one way so the strap does not twist or bind.2) Each strap has a catch on the end so the strap does not pull through the buckle.3) There are 6 zippers on the pack. One is color coded blue indicating the pouch for the bladder. So you know not to open that when accessing the other 2 storage areas which has dual zippers. Again, letting you know it is a storage area. The final single zipper is a pocket on the top that is lined with soft fabric for delicate items; cell or sunglasses etc.4) Padding on the back to hold it off the spine and webbing to allow air flow. Very nice touch.5) Chest strap has magnetic locking catch that