Back to top

Please select a color/size.


  • Impact Protector™ pad is made of flexible, lightweight foam that moves with your body and absorbs impact to protect your back when you take a spill
  • Lightweight design holds the 100 fl. oz. (3-liter) Antidote™ reservoir with a wide mouth cap for easy filling; quick-snap reservoir cap tightens in just a quarter turn
  • Big Bite™ valve is easy to use—just bite and sip
  • 915 cu. in. of gear capacity lets you carry your helmet, extra layers, knee and elbow pads, multi-tool, pump, spare tube, extra layer, lunch, phone and keys securely
  • Wide waist belt, dual sternum straps and yoked harness keep the pack positioned securely; compression straps cinch everything down so you won't get caught on branches
  • Integrated raincover pops up to shield your gear; includes a bike tool organizer roll that fits into a cargo space
  • Please note: Machine washing may damage the pack or affect the integrity of the fabric and fasteners
  • The best way to care for your reservoir is to clean and dry it after every use, especially if you fill the reservoir with anything other than water


View all CamelBak Cycling Hydration Backpacks

REI membership


Best Use Mountain Biking
Frame Type Frameless
BPA Free Yes
Gear Capacity (L) 15 liters
Gear Capacity (cu. in.) 915 cubic inches
Reservoir Capacity (fl. oz) 100
Weight 2 lbs. 14.8 oz.
Fits Torso 19 inches
Fits Waist/Hips 26 - 46 inches
Material(s) 70-denier nylon/140-denier nylon
Pack Access Panel
Number of Exterior Pockets 9 + main compartment
Hipbelt Yes
Bite Valve Shut-Off Switch Yes
Quick Disconnect Tubing Yes
Wide-Mouth Opening Yes
Raincover Included Yes
Dimensions 24 x 13.5 x 4 inches
Gender Unisex
Rated 5 out of 5 by from Top quality camelbak storage bag! The second I got it I knew I would love it. It's incredibly well thought out and very well designed. There are straps for your sternum and your hips so the weight doesn't destroy your shoulders. The camelbak is HUGE and has thee amazing system where you can unplug the hose and fill the reservoir with water outside the bag for zero hassles. The rain bag covers the bag minus the straps to keep it dry, stores in the bottom and has two Velcro straps to attach and not slide off. The zippers are big and easy to zip up and down. The back protector is sturdy and can be removed if you don't need it. I love the design and sturdiness of this bag. I highly recommend it.
Date published: 2016-07-01
Rated 5 out of 5 by from Perfect blend of protection and storage. Coming off a multiple vertebrate fracture and all the realizations that come with an injury like that, I started looking at packs with spine protection. POC and Evoc were high on the list, but they all missed the mark in the details when compared to the KUDU. The POC just didn't have the external carry features that I really needed, and the EVOC didn't seem as comfortable. I ride in Colorado, so that means a lot of hot, steep climbs with rocky descents. I also wear a Super 2R helmet (removable chin guard) and needed a handy place to store that during climbs. Some rides, I'll wear both knee and elbow pads, too, and that means having a handy place to keep those on the climb. What drew me to the KUDU was the fact that it will carry a FF or half shell helmet, chin guard, and dedicated straps on the bottom and sides for knee or elbow pads. That was something none of the other pacs could do with the same ease. There is enough room inside, with all my pads strapped to the outside, that I can stuff my shoes and other gear in there and just have one pack sitting around the house with my riding gear. The hip pockets are big enough for an iPhone 6, and I like that one has a zipper (iPhone goes in there), and one is just a stretch flap that allows quick access to my energy blocks. The rain jacket on the bottom is something I probably won't use too much, but won't deny I'm glad it's there. I day-hiked with the pack recently and can see it replacing our other dedicated day-hike packs (and that is where a rain jacket would come in handy). There is a mesh pocket inside with a key hook that I stuff my wallet and keys into to keep separate from everything else. I also find the little yellow tool roll to be quite handy as it keeps my big multi-tool, small lube container, and CO2 in one handy spot that's easy to see when looking into the bag. The bladder compartment is also easy to get it, even when the pack is full since it has it's own zippered sleeve. It shares the compartment with the spine protector. I'm used to most packs having a hook at the top to hang the bladder from, but this pack doesn't have that. Instead, there is a stiff loop of material about mid-way down that you slide the plastic lower lip of the bladder handle into. Works great if you're using a camelback bladder, but I don't see how you could put any other brand of bladder in there. It took me a few rides to figure this out, and during that time, the bladder would stop flowing water as it collapsed on itself. You could probably sew something on the top, but if you're not a camelback bladder user, this is something to think about. One thing I learned about the camelbak bladder - it has foldout arms that keep it open for drying. I've used a lot of bladders, and am really enjoying this one. The spine protector is pretty meaty and has quite a bit of coverage. It's rated fairly high and can take multiple impacts, where some spine protectors need to be replaced after just one. Check the CE rating to see where yours falls if you're looking into a pack like this. This is an important differentiation. It is quite heavy at a half pound, but I don't really notice it on the climbs. It feels stiff on your back at first, but once your body heat warms it up, and forms nicely to the shape of your back. Climbing in 85 degree temps up Falcon is never going to feel comfortable, and I don't think this feels any hotter than my previous camelback pack (was much narrower). The hip and dual chest straps really do a nice job on keeping the pack in place during the descents. It's probably one of the most secure packs I've ever worn in that regard. I considered the smaller KUDU, but in reality, the bigger one shares the same chassis, and was only a tiny bit heavier. The straps keep the extra volume in nice and tight, so I'm not sure there is any reason to go with the smaller version. We own a lot of packs for various purposes. Climbing, mountaineering, backpacking, hiking, and on and on. As packs go in general, this is one of my favorite bags I've ever owned. It's versatile, well built, carries well loaded up or empty, and the features are the perfect blend of usable without being "overly" thought out. And knowing that my spine is that much more protected if I take a trip OTB in a rock garden makes it that much better. Most of the guys I ride with don't wear a pack, or just a hip bag, but after my last crash, I'll never ride without this bag on my back, regardless of how short or long the ride is. If we're doing a big, high alpine ride, I'll take out the spine protector to save weight, or if I'm using it to day hike. Otherwise, front range rides or at Winter Park, and this is the pack I'm taking.
Date published: 2016-05-26
  • y_2017, m_6, d_21, h_3
  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_2
  • loc_en_US, sid_881764, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_rei-inc
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 50ms

Does this KUDU come with the magnetic tube trap on it?

Asked by: Maxim Oh
The K.U.D.U. 18 Hydration Pack does not come with a magnetic sternum strap.
Answered by: REIservice
Date published: 2016-07-11
  • y_2017, m_6, d_17, h_6CST
  • bvseo_bulk, prod_bvqa, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_1
  • loc_en_US, sid_881764, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_rei-inc
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 37ms