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Details

  • Custom-moldable, anatomically contoured BioForm4 CM™ hipbelt and shoulder straps balance firmness and cushioning for optimal support and comfort
  • Osprey certified custom molding is available in most REI stores—check your local store for availability
  • Back panel is lined with reversed spacer mesh for a smooth and breathable contact surface
  • Peripheral frame effectively transfers weight to the hipbelt; single 6061-T6 aluminum center stay helps maintain back panel shape
  • Top-loading main compartment can also be accessed through curved side zippers on each side of the pack body; wide-mouth sleeping bag compartment is easy to load and unload
  • Dual-compartment top pocket converts to lumbar pack with built-in belt
  • External hydration sleeve in the back panel simplifies refilling and helps protect pack contents from spills (hydration reservoir sold separately)
  • Roomy front pockets with coated zippers help keep often-used items handy; stretch-mesh front pocket makes it easy to quickly stash and access extra gear
  • Zippered hipbelt pockets and dual-access stretch-mesh side pockets provide secure storage and organization
  • The Osprey Xenith 105 pack features dual side compression straps, removable sleeping pad straps, trekking pole attachment and 2 ice-axe loops and handle wraps

Imported.

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REI membership

Specs

Frame Type Internal Frame
Backpack Style Deluxe backpack
Gear Capacity (L)
M
105 liter
L
109 liter
XL
113 liter
Gear Capacity (cu. in.)
M
6,407 cubic inches
L
6,652 cubic inches
XL
6,896 cubic inches
Weight
M
5 lbs. 8 oz.
L
5 lbs. 12 oz.
XL
5 lbs. 15 oz.
Weight - Metric
M
2.49 kilograms
L
2.59 kilograms
XL
2.69 kilograms
Adjustable Torso Yes
Fits Waist/Hips
M
30 - 34 inches
L
33 - 37 inches
XL
36+ inches
Number of Stays Peripheral hoop/aluminum center stay
Pack Access Top/sides/bottom
Number of Exterior Pockets 8 + main compartment
Best Use Backpacking
Fits Torso
M
18 - 20.5 inches
L
20 - 22.5 inches
XL
22+ inches
Material(s) High tenacity nylon/nylon oxford
Frame Material HDPE framesheet/metal alloy peripheral frame
Hydration Compatible Yes
Sleeping Bag Compartment Yes
Gender Men's
Rated 4 out of 5 by from Excellent pack but with one flaw ... This is a very well designed expedition pack but with a fatal flaw … the buckles are very fragile and prone to breaking. In less than one year my pack had 3 buckles break (by comparison, my Dana Designs pack that it replaced never had a single buckle break in almost 20 years). Osprey packs have a lifetime warranty and they will send you replacement buckles free of charge, but that is not much use if you are in the middle of nowhere when a buckle breaks. Osprey's Customer Service guys were very helpful, they said a lot of these buckles are breaking in use but Osprey is not planning to introduce stronger buckles in production. As a result they sent me a different set of buckles that are stronger for me to completely retrofit my pack. So if you buy this pack (as I mentioned, it is a very well designed expedition pack), then do yourself a big favor by immediately contacting Customer Service and asking them to sent you a set of strong quick attach replacement buckles.
Date published: 2013-11-26
Rated 5 out of 5 by from Best Pack I Have! Durable (except for the buckles) and plenty of room to put all my stuff. Everything was easy to access including my water with the hydration compartment. I highly recommend getting the bag but make sure you take the other posters advice and get the stronger buckles.
Date published: 2014-04-04
Rated 2 out of 5 by from Uncomfortable under 55lb load I've had a 65L Osprey Atmos for 5yr that I absolutely love. It's taken me on 8day Summer trips across the Sierra and on 2-3day winter mountaineering trips, and it's performed awesomely. But as I progress to longer, higher-altitude winter mountaineering expeditions, a 65L pack just doesn't cut it anymore. Enter the Osprey Xenith 105. It has an excellent function:weight ratio. Buckles felt cheap, but I was willing to give it a chance... until I loaded it with 55lb and did a test haul up a local peak. The bag felt incredibly uncomfortable on the lower back. I've heard complaints from other climbers/hikers about the metal bar that runs horizontally along the bottom of Osprey packs. When loaded, the suspension of the pack causes the metal bar to get pushed into the person's lower back/tailbone and even causes bruising in a few hours time. At first I thought those people just had weird backbones, but I tried it on my Atmos, and I found I can easily replicate this phenomenon in my 65L Osprey pack--if I exceed its maximum 45lb load range. In my mind, though, it makes sense that a 65L pack becomes uncomfortable with a 55lb load because the load is technically outside what the pack is designed to carry. I was okay with that. On the other hand, the maximum load on this Xenith 105 is 70lb. A 55lb load is 20% under the maximum rating, so I would expect it to carry 55lb comfortably. Unfortunately, no amount of adjusting or packing configuration could make it comfortable for me. I'm not okay with that. A 105L pack shouldn't feel uncomfortable with 55lb. Very disappointed with this pack--I promptly returned it.
Date published: 2016-05-09
Rated 5 out of 5 by from Been A Very Long Time Since I Upgraded... I had my last pack for some ~16 years. Was using one of REI's Great Star packs from a long while back. I recently purchased this pack as I need a lot of gear storage (packrafting). After using my last large pack for 16 years for the adventures that required a ton of gear this pack blew my mind. I had it LOADED recently and could not believe the suspension. I did require the harness to drop way further in the pack to get it fit right. I went into the REI store with it and they helped a ton. Overall A++. The jump in tech obviously over that period of time is immense. The side pockets are fantastic, I really love the easy access mesh in the front for things like rain jackets. The osprey large rain cover fit the pack perfectly. Couldn't be happier.
Date published: 2016-05-24
Rated 5 out of 5 by from I really like this brand bag because of it good long lasting I use this bag for day and extended hike. I have used it for both Mt.kenya and kilimanjaro.
Date published: 2016-02-14
Rated 5 out of 5 by from Reduces perceived load by 20 pounds* *Compared to a 10 year-old Kelty Redcloud 5600 (90L) pack that I was using previously, this pack feels about 20 pounds lighter when loaded. That is to say, 60 pounds in this pack feels like what 35-40 pounds felt like in the Redcloud. I recently took this pack on a 4 day trip in the Sierras along the John Muir and Pacific Crest Trails with daily distances of 8, 4, 8, and 8 miles. Starting pack weight was 62 pounds. Comfort was excellent, with only slight tenderness on my hips where the hip belt rode the previous day. Much like a backside when cycling, I imagine that if I were to carry that same amount of weight for a 5th or 6th day, that tenderness would be gone as my body got used to the pressure. I had no durability issues with the pack, but 4 days isn't a significant test in that department. The external hydration pouch was convenient, but it can be difficult (by no means impossible, though) to stuff a full 100 ounce bladder into the hydration pocket when the pack is loaded up. I found the pockets to be useful, and sized well enough to accommodate useful amounts of gear when the main compartment was stuffed to the gills. The mesh side pockets are large enough for 40 ounce Hydro Flask bottles and still leave room with 32 Oz Nalgene bottles when the main compartment is full. I found the fit to be in line with the manufacturer's numbers. I purchased a medium, have roughly a 19" C7 to Iliac crest measurement, and am 5'8" with a 33" waist. The range of harness adjustments in size medium was more than sufficient to fit me extremely well. I recommend watching Osprey's pack sizing video, as some of the potential harness adjustments might not be entirely obvious at first glance.
Date published: 2015-06-17
Rated 5 out of 5 by from Excellent pack. Lots of room for big expeditions I've taken this pack on a few trips over the summer including a 5 day trip through the windriver mountain range and up gannett peak. It survived glisadding thousands of feet down a glacier. Only thing that broke was the nipper pull. So far an amazing and durable pack
Date published: 2016-11-09
Rated 5 out of 5 by from Osprey Xenith and Xena Buckles While the vast majority of Osprey Xenith and Xena backpacks sold have had no issue with broken buckles, some of our customers have experienced breakage on the male external compression/top pocket closure and the pad straps buckles. Per the All Mighty Guarantee, Osprey Packs will send out replacement parts to replace broken or damaged parts only. In the event that you break a buckle, you can fill out a parts request on our website. You will receive an exact replacement of the broken buckle on your pack.
Date published: 2014-05-29
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How do you know if your Sleeping bag compartment is big enough to hold your sleeping bag?

Asked by: Benwg
The Osprey Xenith 105 Pack has a lower compartment that is referred to as a sleeping bag compartment. You can use this compartment for anything you'd like, including your sleeping bag. While backpacking, we recommend putting your sleeping bag into a compression sack to make it as small as possible. If you have an unusually large sleeping bag that does not fit into the lower compartment, you could put it into the upper compartment or lash it to the outside of the pack. This is one of the largest packs that REI carries, therefore you should have plenty of options. Many people choose to put their sleeping bag elsewhere in the pack, in order to properly distribute the weight of the bag's contents.
Answered by: REIservice
Date published: 2016-11-08

Does this come with a rain cover?

Asked by: Chrisban
No it does not. Here are two rain covers that would work well: REI Duck's Back Rain Cover - 100 Liters http://www.rei.com/product/855431/rei-ducks-back-rain-cover-100-liters Osprey UltraLight Pack Raincover - X Large http://www.rei.com/product/878469/osprey-ultralight-pack-raincover-x-large#tab-specs
Answered by: REIservice
Date published: 2015-09-20

Does this xenith 105 come with the bioform4 hip belt and shoulder straps and if not what is the difference between the stock packs shoulder and hip straps and the bioform4's. Thank you

Asked by: Milton1
This pack does come with the BioForm4 custom moldable hipbelt and shoulder straps.
Answered by: REIservice
Date published: 2017-03-30

Has Osprey fixed the problem with the weak buckles that two out of three reviewers noted? One stated that Osprey Customer Service gave him a set of much stronger buckles to replace his entire set.  Will they provide this set of enhanced buckles on demand?

Asked by: des Cimes
Osprey has done an inline fix on the buckles for the Zenith. In the event that a buckle breaks, you can contact Osprey and they will send out a new buckle.
Answered by: REIservice
Date published: 2016-11-08

Have there been recent complaints about the buckles breaking? Has Osprey changed the design of the buckles within the last 2 years? I do not understand the previous answer that an "inline" fix was done-- what does this mean? Thanks for clarifying!

Asked by: inspirit
Two years ago there was an issue with the buckles on the Xenith 105 Pack. Osprey fixed the issue with the packs they were sending out. We have not received any additional reports of breaking buckles on the pack.
Answered by: REIservice
Date published: 2017-06-03

Will this work as a carry-on for the major airlines or would it have to be taken as checked luggage?

Asked by: rich78
Standard carry-on size for US domestic flights is approximately 48 liters (3,000 cubic inches). This is too large to carry on.
Answered by: REIservice
Date published: 2017-06-15

Is there anything particular in regards to the hydration sleeve/bag I will need for this pack, or is it pretty much universal? I have several, even an Osprey 3L. Thank you.

Asked by: Chris MacLeod
Just about any 3 liter reservoir works perfectly with the Xenith 105. Your Osprey is a fine choice.
Answered by: REIservice
Date published: 2016-05-13

What size is best to take - 88 or 105?

Asked by: Alexey83
The best size pack to carry depends on several factors, including length of trip, season and climate, type of gear needed for your trip, and personal preferences in type of gear (like ultralight versus the more durable, but bulky, standard gear). A great way to start figuring out the best pack size for your needs is to read this article in our Expert Advice section, titled ‘Backpacks: How to Choose’: http://www.rei.com/learn/expert-advice/backpack.html
Answered by: REIservice
Date published: 2015-09-20
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Back to top

Please select a color/size.

Reviews

Rated 4 out of 5 by from Excellent pack but with one flaw ... This is a very well designed expedition pack but with a fatal flaw … the buckles are very fragile and prone to breaking. In less than one year my pack had 3 buckles break (by comparison, my Dana Designs pack that it replaced never had a single buckle break in almost 20 years). Osprey packs have a lifetime warranty and they will send you replacement buckles free of charge, but that is not much use if you are in the middle of nowhere when a buckle breaks. Osprey's Customer Service guys were very helpful, they said a lot of these buckles are breaking in use but Osprey is not planning to introduce stronger buckles in production. As a result they sent me a different set of buckles that are stronger for me to completely retrofit my pack. So if you buy this pack (as I mentioned, it is a very well designed expedition pack), then do yourself a big favor by immediately contacting Customer Service and asking them to sent you a set of strong quick attach replacement buckles.
Date published: 2013-11-26
Rated 5 out of 5 by from Best Pack I Have! Durable (except for the buckles) and plenty of room to put all my stuff. Everything was easy to access including my water with the hydration compartment. I highly recommend getting the bag but make sure you take the other posters advice and get the stronger buckles.
Date published: 2014-04-04
Rated 2 out of 5 by from Uncomfortable under 55lb load I've had a 65L Osprey Atmos for 5yr that I absolutely love. It's taken me on 8day Summer trips across the Sierra and on 2-3day winter mountaineering trips, and it's performed awesomely. But as I progress to longer, higher-altitude winter mountaineering expeditions, a 65L pack just doesn't cut it anymore. Enter the Osprey Xenith 105. It has an excellent function:weight ratio. Buckles felt cheap, but I was willing to give it a chance... until I loaded it with 55lb and did a test haul up a local peak. The bag felt incredibly uncomfortable on the lower back. I've heard complaints from other climbers/hikers about the metal bar that runs horizontally along the bottom of Osprey packs. When loaded, the suspension of the pack causes the metal bar to get pushed into the person's lower back/tailbone and even causes bruising in a few hours time. At first I thought those people just had weird backbones, but I tried it on my Atmos, and I found I can easily replicate this phenomenon in my 65L Osprey pack--if I exceed its maximum 45lb load range. In my mind, though, it makes sense that a 65L pack becomes uncomfortable with a 55lb load because the load is technically outside what the pack is designed to carry. I was okay with that. On the other hand, the maximum load on this Xenith 105 is 70lb. A 55lb load is 20% under the maximum rating, so I would expect it to carry 55lb comfortably. Unfortunately, no amount of adjusting or packing configuration could make it comfortable for me. I'm not okay with that. A 105L pack shouldn't feel uncomfortable with 55lb. Very disappointed with this pack--I promptly returned it.
Date published: 2016-05-09
Rated 5 out of 5 by from Been A Very Long Time Since I Upgraded... I had my last pack for some ~16 years. Was using one of REI's Great Star packs from a long while back. I recently purchased this pack as I need a lot of gear storage (packrafting). After using my last large pack for 16 years for the adventures that required a ton of gear this pack blew my mind. I had it LOADED recently and could not believe the suspension. I did require the harness to drop way further in the pack to get it fit right. I went into the REI store with it and they helped a ton. Overall A++. The jump in tech obviously over that period of time is immense. The side pockets are fantastic, I really love the easy access mesh in the front for things like rain jackets. The osprey large rain cover fit the pack perfectly. Couldn't be happier.
Date published: 2016-05-24
Rated 5 out of 5 by from I really like this brand bag because of it good long lasting I use this bag for day and extended hike. I have used it for both Mt.kenya and kilimanjaro.
Date published: 2016-02-14
Rated 5 out of 5 by from Reduces perceived load by 20 pounds* *Compared to a 10 year-old Kelty Redcloud 5600 (90L) pack that I was using previously, this pack feels about 20 pounds lighter when loaded. That is to say, 60 pounds in this pack feels like what 35-40 pounds felt like in the Redcloud. I recently took this pack on a 4 day trip in the Sierras along the John Muir and Pacific Crest Trails with daily distances of 8, 4, 8, and 8 miles. Starting pack weight was 62 pounds. Comfort was excellent, with only slight tenderness on my hips where the hip belt rode the previous day. Much like a backside when cycling, I imagine that if I were to carry that same amount of weight for a 5th or 6th day, that tenderness would be gone as my body got used to the pressure. I had no durability issues with the pack, but 4 days isn't a significant test in that department. The external hydration pouch was convenient, but it can be difficult (by no means impossible, though) to stuff a full 100 ounce bladder into the hydration pocket when the pack is loaded up. I found the pockets to be useful, and sized well enough to accommodate useful amounts of gear when the main compartment was stuffed to the gills. The mesh side pockets are large enough for 40 ounce Hydro Flask bottles and still leave room with 32 Oz Nalgene bottles when the main compartment is full. I found the fit to be in line with the manufacturer's numbers. I purchased a medium, have roughly a 19" C7 to Iliac crest measurement, and am 5'8" with a 33" waist. The range of harness adjustments in size medium was more than sufficient to fit me extremely well. I recommend watching Osprey's pack sizing video, as some of the potential harness adjustments might not be entirely obvious at first glance.
Date published: 2015-06-17
Rated 5 out of 5 by from Excellent pack. Lots of room for big expeditions I've taken this pack on a few trips over the summer including a 5 day trip through the windriver mountain range and up gannett peak. It survived glisadding thousands of feet down a glacier. Only thing that broke was the nipper pull. So far an amazing and durable pack
Date published: 2016-11-09
Rated 5 out of 5 by from Osprey Xenith and Xena Buckles While the vast majority of Osprey Xenith and Xena backpacks sold have had no issue with broken buckles, some of our customers have experienced breakage on the male external compression/top pocket closure and the pad straps buckles. Per the All Mighty Guarantee, Osprey Packs will send out replacement parts to replace broken or damaged parts only. In the event that you break a buckle, you can fill out a parts request on our website. You will receive an exact replacement of the broken buckle on your pack.
Date published: 2014-05-29
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Questions & Answers

How do you know if your Sleeping bag compartment is big enough to hold your sleeping bag?

Asked by: Benwg
The Osprey Xenith 105 Pack has a lower compartment that is referred to as a sleeping bag compartment. You can use this compartment for anything you'd like, including your sleeping bag. While backpacking, we recommend putting your sleeping bag into a compression sack to make it as small as possible. If you have an unusually large sleeping bag that does not fit into the lower compartment, you could put it into the upper compartment or lash it to the outside of the pack. This is one of the largest packs that REI carries, therefore you should have plenty of options. Many people choose to put their sleeping bag elsewhere in the pack, in order to properly distribute the weight of the bag's contents.
Answered by: REIservice
Date published: 2016-11-08

Does this come with a rain cover?

Asked by: Chrisban
No it does not. Here are two rain covers that would work well: REI Duck's Back Rain Cover - 100 Liters http://www.rei.com/product/855431/rei-ducks-back-rain-cover-100-liters Osprey UltraLight Pack Raincover - X Large http://www.rei.com/product/878469/osprey-ultralight-pack-raincover-x-large#tab-specs
Answered by: REIservice
Date published: 2015-09-20

Does this xenith 105 come with the bioform4 hip belt and shoulder straps and if not what is the difference between the stock packs shoulder and hip straps and the bioform4's. Thank you

Asked by: Milton1
This pack does come with the BioForm4 custom moldable hipbelt and shoulder straps.
Answered by: REIservice
Date published: 2017-03-30

Has Osprey fixed the problem with the weak buckles that two out of three reviewers noted? One stated that Osprey Customer Service gave him a set of much stronger buckles to replace his entire set.  Will they provide this set of enhanced buckles on demand?

Asked by: des Cimes
Osprey has done an inline fix on the buckles for the Zenith. In the event that a buckle breaks, you can contact Osprey and they will send out a new buckle.
Answered by: REIservice
Date published: 2016-11-08

Have there been recent complaints about the buckles breaking? Has Osprey changed the design of the buckles within the last 2 years? I do not understand the previous answer that an "inline" fix was done-- what does this mean? Thanks for clarifying!

Asked by: inspirit
Two years ago there was an issue with the buckles on the Xenith 105 Pack. Osprey fixed the issue with the packs they were sending out. We have not received any additional reports of breaking buckles on the pack.
Answered by: REIservice
Date published: 2017-06-03

Will this work as a carry-on for the major airlines or would it have to be taken as checked luggage?

Asked by: rich78
Standard carry-on size for US domestic flights is approximately 48 liters (3,000 cubic inches). This is too large to carry on.
Answered by: REIservice
Date published: 2017-06-15

Is there anything particular in regards to the hydration sleeve/bag I will need for this pack, or is it pretty much universal? I have several, even an Osprey 3L. Thank you.

Asked by: Chris MacLeod
Just about any 3 liter reservoir works perfectly with the Xenith 105. Your Osprey is a fine choice.
Answered by: REIservice
Date published: 2016-05-13

What size is best to take - 88 or 105?

Asked by: Alexey83
The best size pack to carry depends on several factors, including length of trip, season and climate, type of gear needed for your trip, and personal preferences in type of gear (like ultralight versus the more durable, but bulky, standard gear). A great way to start figuring out the best pack size for your needs is to read this article in our Expert Advice section, titled ‘Backpacks: How to Choose’: http://www.rei.com/learn/expert-advice/backpack.html
Answered by: REIservice
Date published: 2015-09-20
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