Free Shipping on Orders Over $50*



Whether you have aspirations to walk the entire Appalachian trail or you're trekking through Nepal, the Osprey Xenith 88 Backpack has the packing space, support, and comfort to handle the task. The LightWireHD frame transfers weight to the hips so you can haul up to 70 pounds of gear, and the BioForm CM waist-belt can be custom heat molded for a fully personalized fit. Dual curved side zippers allow you to quickly access gear without dumping everything out, and the removable lid doubles as a day pack when you want to leave the bulk of your gear at camp.

  • LightWireHD peripheral frame gives the pack structure and effectively transfers the load to the hip-belt
  • Single 6061-T6 aluminum stay provides enough support to comfortably carry loads between 40 and 70 pounds
  • BioForm CM hip-belt and harness provide supportive cushioning and are fully adjustable for a custom fit
  • BioForm CM hip-belt can be custom heat-molded at CM-Certified Osprey retailers
  • Highly breathable mesh spacer on the back panel provides enough ventilation to keep you dry and comfy on the trail
  • Top access makes for easy packing
  • Dual side-access zippers allow you to grab gear without dumping everything out
  • Detachable top lid has a built-in waist-belt which allows it to double as lumbar pack
  • External hydration sleeve protects the inside of the pack from spills and allows you to hydrate on the go (reservoir not included)
  • Two zip front pockets keep frequently used items close at hand
  • Front mesh stash pocket is ideal for a rain jacket or puffy
  • Dual waist-belt pockets provide on-the-go access to lip balm, bug spray, and other essentials
  • Sleeping bag compartment with divider allows you to quickly pack sleep gear
  • Removable sleeping pad straps provide a secure exterior attachment point
  • Dual compression straps help to balance the load
  • Stow-on-the-Go trekking pole attachments allow you to quickly secure poles when not in use

Share your thoughts

What do you think of the

Osprey Packs Xenith 88 Backpack - 5370-5858cu in

? Share a...

Write a review

No file chosen

Rather attach a photo from another website?

Rather attach a photo from your computer?

    Add a:
  • Share a photo
  • Share a video

Familiarity: (Optional)

Only jpg, jpeg, png, gif or bmp files please.


Here's what others have to say...

5 5

Perfect backpack

  • Familiarity: I've used it once or twice and have initial impressions

This is really amazing backpack. I've used it for 12 days trip to Altay mountains in the South of Siberia. I'm 178 cm. and took XL and it fitted perfectly. The backpack is very roomy, it was filled for about 80% for entire trip (cloth, sleeping bag/pad, 3-person tent, personal belongings, food). The weight at the beginning was 25-30 kilo but the pack is so comfortable and distributes the weight so properly that I had no problems with that.
The is just one point Osprey could did better - front pockets: the volume of the pockets directs inside the backpack and when the backpack filled tightly it takes some space of the pockets that make the access to pockets not free as I wish. I would prefer to have these pockets "external".

Does this pack have side mesh pockets for water bottles?

If my height is 190 cm / 6'2 what size is...

If my height is 190 cm / 6'2 what size is best to take? L or XL?

Responded on

Hey Alexey,

Packs are measured by torso length which is from the C7 vertebra (that bump where your shoulders and neck meet) and your hip-shelf (the very top of your hipbone). Torso sizing is as follows: M (18 -21 inches) L (20-23 inches) XL (22-25 inches)

Responded on

Hi Alexey, I'm 178 and used XL without any problems. I've just set up the harness to the lowest possible position and it fitted fine for me.

What is the difference between the Xenith...

What is the difference between the Xenith and Aether packs?

Best Answer Responded on

The biggest difference is that the Xenith packs are a bit stronger than the Aether. The materials are a little more robust. The Xenith 88 has a maximum recommended load of 70 lbs while the Aether 85 max is 60 lbs. If you are looking to carry heavier loads the Xenith is for you. That being said, I own the Aether 70 and it is more than enough pack for me on anything less than a 10 day backcountry trip.

5 5

Great pack!

  • Familiarity: I've put it through the wringer

This is simply an awesome pack. I've done so large climbs with it and it is perfect balance between weight and size. I've had other packs that were 105s. . . I find that if I am paying attention to my pack, this is big enough for all the climbs I plan to do. Plan to use this (with a sled and duffle) for Denali. Dont think I'll have any problems.

Great pack!
4 5

Comfortable but not perfect features

  • Gender: Male
  • Familiarity: I've used it several times

The pack is comfortable to wear. I wore it with about 80lbs in it over extended hikes and the pack is fairly comfortable and adjusts well. this is the most important thing in a pack and it does well at that.

What I didn't like about it comes down to small details that may not matter to everyone.

First, the sleeping pad straps were too short for me. I had to lengthen them all the way and really press on my closed cell foam pad for it to close. It was a pain having to do that under the rain.

Second, while you have your sleeping pad on there, it becomes really hard to get the ice-axe out of its loop. You have to flip the axe over and tilt it while trying not to harm your sleeping pad. Maybe this would not be a problem if the straps for the pad were longer and easier to close (just unclip the pad in that case)

Lastly, the pockets on the hip-belt are not very practical. For me they were slightly on the back of my hips and I couldn't really see them or access them easily.

Overall, it's a good pack, but if you put a lot of value on these small details, then maybe it's not for you.

I'm looking to replace my old Argon 70....

I'm looking to replace my old Argon 70. But it comes down to this:
Will the Xenith carry skis or splitboard in an A-frame?

Responded on

I recently purchased this pack, and its not designed to carry skis period, however i feel that you could carry them in an A-frame style using the adjustment straps on the sides of the pack. i haven't tested it because my skis don't have bindings, but I'm fairly sure it would work! This is probably of no use to you now almost two years later, but oh well!