Free 2-Day Shipping on Orders Over $50* – Limited Time Only

Detail Images

  • Osprey Packs Radial 34 Backpack - 1953-2075cu in Mantis Green
  • Osprey Packs Radial 34 Backpack - 1953-2075cu in Black

Available colors

  • Osprey Packs Radial 34 Backpack - 1953-2075cu in Mantis Green
  • Osprey Packs Radial 34 Backpack - 1953-2075cu in Black

Osprey Packs Radial 34 Backpack - 1953-2075cu in


Free 2-Day shipping on orders over $50*

Select style & size:

Select options
  • Select options
    • Mantis Green, S/M
    • Mantis Green, M/L
    • Black, S/M
    • Black, M/L
    3.5 5 4

    4 Reviews


    Haul it all.

    You're the type of commuter that's a biker and, our of necessity, a walker (maybe even a sprinter when that meeting is in five minutes). Panniers just don't do it for you, and you need a lot of space, but you want a backpack that's comfortable and can keep your stuff organized. Step in the Osprey Radial 34 Backpack. When you're commuting on your bike, the Airspeed backpanel and perforated EVA foam harness keeps your shoulders cool while you're pedaling with a loaded pack. The Lightwire framing system gives this pack some backbone for a more comfortable fit. If you're riding over road rubble, the removable nylon waist belt adjusts via the modified ErgoPull system to supplement pack stability.

    A top-access, dual-zippered tech compartment stores your laptop and tablet in separate padded sleeves. The main compartment offers document sleeves for lab reports or EBIDTA spreadsheets as well as mesh organizers for your calculator, gum, erasers, and pencils. The LidLock helmet clip holds your helmet when you're not on the bike, and a discrete compartment holds your U-lock when you're in transit. Both the pack and the integrated rain cover have blinker light attachment tabs and a bit of reflective material. Regardless of the weather, clip on your favorite flashing light so motorists have a chance of seeing you.

    • Biostretch harness, perforated EVA foam and space mesh
    • Magnetic sternum strap
    • Airspeed backpanel and Lightwire framing system
    • Panel-access main compartment, document sleeves, mesh organization
    • Top-zip access laptop and tablet compartment
    • 420D dobby and 420HD nylon fabrics
    • Rain cover included
    • Item #OSP0356

    Tech Specs

    420D nylon, 420D HD nylon
    Laptop Pocket Size
    14.8 x 10.5 x 1.5 in
    [external] 1 zippered front, 1 zippered side, [internal] 1 tablet
    Actual Weight
    Black, S/M: 1380g
    22 x 15 x 12 in
    [S/M] 1953 cu in, [M/L] 2075 cu in
    Recommended Use
    school, travel, commuting
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Nice bag, but has issue with framing.

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

    I was super excited to get this bag, but didn't realize at the time that it had an internal frame system. Not a deal breaker for having one by any means. It was light and made of high quality materials like every Osprey pack. The problem is that at the bottom of the framing system, there is a curved black plastic base on the outside of the pack that digs into your lower back. I tried mine on un-weighted, but could already tell it was a definite no-go. So I ended up returning it.

    Hey Duncan, thank you for writing. We have heard this issue and have addressed it with some changes for the future. But please know also that many people do not have this issue, so the current model will work for lots of folks. For you, we do have an update!


    Osprey Rep

    Holds a day's worth of essentials.

    • Familiarity:I've put it through the wringer

    I was looking for a bag that wasn't huge and could fit a day's worth of cycling and work essentials in a tidy, organized way. This bag fits the bill perfectly. I'm about 5'8", 118lbs and got the S/M sized pack, which fits comfortably to carry everything without being too bulky. The separated mesh back panel is awesome for airflow and seems to conform to my back for comfy walking or riding, which is a huge improvement over other packs that just have the rigid laptop compartment right against your back.

    My favorite piece is all the organization. My laptop gets its own zippered compartment away from the main cargo compartment, and separate zippered compartments across the front and side let me keep all my riding gear, lunch, laptop accessories, etc. neatly organized. The side pockets aren't big enough to zip closed over a water bottle, but they're the perfect size for sunscreen, snacks, or a tub of chamois cream, and the side compression straps work well to keep water bottles in those pockets safely.

    On construction, this pack is pretty bombproof, which isn't surprising for an Osprey. So far it's holding up to day-to-day use perfectly.

    Holds a day's worth of essentials.

    Good bag but with one fatal flaw

    • Familiarity:I've put it through the wringer

    Has been using it for over half year.
    Pros: good craftsmanship as Osprey has always been--nice back venting system, practical and convenient pockets layout, good material, etc.
    Cons: the bag has a hard metal/plastic frame to keep the shape, and it is a contour shaped to fit perfectly with your back. It is a good intention, but the contour curves too much at the bottom of the bag, which is corresponding to your upper hip area. This cause the frame to poke your body, to pull your pants down because it is stuck with the belt area. Very annoying. I've tried both the S/M and M/L sizes, and unfortunately none works.

    Hey there BWK - Thank you for taking the time to share this. I have been a rep with Osprey for 22 years, and this type of constructive feedback gives us the opportunity to improve. Thank you so much - I will get this over to the designers at Osprey.

    Osprey Rep

    BWK, Leta here again from Osprey. Here is what the product designers said when I sent over your feedback:

    "We have made improvements to the frame shape to not have as much of a corner and we have added padding on that corner on the wing that attaches the hipbelt."

    So, the really take feedback like this to heart and work to improve the product constantly. They had heard this before and have already taken steps to correct it. That's one of the things I LOVE about Osprey!

    Again, thank you for writing!


    Hi Leta,

    So if I bought this bag today (10/16/2015), are you telling me that I will not find this issue with the frame poking into my hip as that has been taken care of already and the bags in stock everywhere currently are the updated version?


    Great bag overall but very big

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

    The bag is very high quality. It seems like it is better than my Osprey Escapist. It also vents well. However it is very large and I think too big for everyday commuting. As a result of the large size my back still had some sweat on it because it is fully covered. I am pretty big, 6'1'' 190lbs and pretty much every inch of my back is covered by the bag. Compared to an Osprey Escapist 30 this thing feels huge. The size down might be good for commuting. I think I am sending this one back and will try the size smaller.

    I packed it full of shoes, a change of cloth, lunch, tube and pump and there was still a ton of room for more stuff.

    Would this bag be big enough to get a pair of Alpine Ski Boots (26.5) inside the main compartment? I have a 32L bag that they fit into, but looking to update it. Some people might like the enormous unruly bags that are made for ski boots and such, but I've found that a large pack works just as well and I can use it outside of ski season.

    Your old 32L backpack is about 1952 cubic inches which is comparable to the Radial 34 in S/M. The internal tablet/laptop pocket will take up some of the volume inside the main compartment and might prevent your boots from fitting inside. Other good options might be an Osprey alpine/ski pack like the Kode or Kestrel. The good news is the we have an awesome exchange policy so if the Radial 34 does not work for your boots you can swap it for free.

    Contact me with any more questions about Osprey backpacks:


    Has anyone used this for mountain bike...

    Has anyone used this for mountain bike (single/double track trails) commuting? If not, is there a bag on the market that's specifically made for MTB commuting?