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Osprey Manta AG 28 Pack

Osprey Manta AG 28 Pack is rated 4.3 out of 5 by 10.
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4.3 Star Rating

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When will I get my stuff?

"In Stock" means this item is ready to ship. Orders placed before 3pm EST using a ship speed of 1 Day, 2 Days, or 3 Days will ship SAME DAY. Orders using 4-6 Day ship speed will ship within one business day.

"Ship Date" means we will special-order the product for you, and this is the date we expect your shipment to leave our warehouse.

"Oversized" means the item is large and can only be shipped using 4-6 Day ship speed. Additional shipping charges may apply.

"Freight" means the item is too large for standard shipping methods, and must be shipped by truck freight for an additional fee. Someone must be present to inspect, sign, and accept delivery, so we will call you to schedule delivery.

If you have any questions, please Live Chat or call us at 877-666-7352.

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Product Description Item No.   10303531

The Osprey Manta AG 28 Pack is a hiking pack for exploring the wilderness on done-in-a-day adventures. It all starts with comfort thanks to the Anti-Gravity suspension system. Yup, that's totally what the AG stands for. It's a system though, not just one single part. It includes a LightWire™ frame, mesh backpanel, a BioStretch™ harness and AG™ hipbelt. Whatever you've stuffed into the pack, from extra layers, lunch and your headlamp to the included Hydraulics™ LT 2.5L reservoir, it'll all carry easily on your back. There's even an included raincover, because you never know when the rain may come.

FEATURES of the Osprey Manta AG 28 Pack

  • Direct zip access hydration compartment
  • Dual upper and lower compression straps
  • Stow-on-the-Go trekking pole attachment
  • Panel access to main compartment with internal mesh pocket
  • Heat embossed scratch free zippered slash pocket
  • Helmet attachment loop
  • Front panel stretch mesh pocket
  • Blinker light attachment
  • Integrated raincover
  • Magnetic sternum strap bite valve attachment
  • Dual access side stretch mesh pockets
  • Dual zippered hipbelt pockets
  • Hydraulics LT 2.5L reservoir included
  • Large zippered front panel pocket with internal mesh pockets

- + Product Specifications
Features: Adjustable Torso, Raincover Included, Hydration Compatible, Compression Straps, Hip Belt
Weight: 35.2 oz
Dimensions: 22 x 13 x 12 in.
Pack Capacity (Small / Medium): 26 Liters / 1587 Cubic inches
Pack Capacity (Medium / Large): 28 Liters / 1709 Cubic inches
Product Technology: Osprey Anti-Gravity, Osprey Peripheral Frame
Disclaimer: We only ship this brand to US Addresses.
Best Use: Trekking, Climbing
Pack Capacity: 28 Liters / 1709 Cubic inches
Trip Length: Expedition
Frame Type: Frameless
Pack Access: Panel
Osprey Anti-Gravity

Osprey Anti-Gravity
Using Osprey's peripheral suspension design this lightweight, body contouring, three dimensional suspension literally allows the wearer to move as if they don’t have a pack on. Seamless suspended mesh from the shoulder blades to the lumbar and even into the hipbelt region disperses and balances the load like nothing ever has before.

Check Out All Anti-Gravity Products >

Osprey Peripheral Frame

Osprey Peripheral Frame
Peripheral frame was a departure from the norm many years ago and it’s still the foundation of our gear hauling packs. A wire frame runs along the outside of the backpanel directly connecting the upper load lifters and the central core of the pack to the hipbelt to transition and spread the load. Allowing natural torsional movement, effective adjustable torsos, and different load range and backpanel builds makes this suspension design truly innovative.

Check Out All Peripheral Frame Products >

Rated 5 out of 5 by from Makes Heavy Load Almost Weightless First of all let me say I almost did not purchase this pack because the fossil grey color looked just a little too feminine for me on the website but the true color is very good. Must be an oversight by Osprey. I needed an airline carry on size pack that would carry about $12 G's of camera equipment and the Manta delivered with flying colors.(But not the one on the website) :). The weight distribution of the pack made it seem almost weightless and so much more comfortable than any other of my packs specifically designed for camera gear. And the size is perfect. Not once did a flight attendant give it a second look, even on Austrian Airlines that have carry on bag patrol inspection personnel closely eyeing every bag, circling around you as you check in. I think they must operate on a commission for each bag that they nab. It kept my camera gear safe and also dry on an Eastern Europe trek. Great quality and well worth the money. It's a great pack.
Date published: 2018-07-23
Rated 3 out of 5 by from Loved it until it started squeaking I loved this pack other than it was a bit snug around the chest so I can't really use the magnet clip I would like to see a pit more adjustment in that or make a larger size pack. Lot's of pockets with a place for everything. I had one issue when the hydration bag broke but I sent it in and it was replaced with a sturdier model. My biggest drawback to this bag is it squeaks very loudly. I've tried adjusting the load every way I can think of and empty or full it still squeaks enough to drive a person crazy. When enjoying the great outdoors I want to be able to hear nature and maybe an animal but not with this pack.
Date published: 2017-12-08
Rated 4 out of 5 by from Fantastic Pack, Would buy again I purchased this pack in the spring to use for day hiking and daily commuting via Bicycle. The pack is very well made I as I have come to expect of Osprey products. I am a larger guy but find the pack to be very comfortable. The air mesh along the back does a great job of keeping you cool and keeping air flow up. The water storage is great and easy to access for refill. Capable of carrying plenty of water for day hikes. Although a little heavier/bulky than my Atmos pack, I see no reason you couldn't do a longer hike, shorter section hike with this pack. The only complaint I have is the bite valve snapped off the first week I had it. I replaced it with a Camelback bite valve as my local retailer carried no spare parts for Osprey Hydration bladders. I prefer the Camelback bite valve to the Osprey version anyway.
Date published: 2017-10-24
Rated 5 out of 5 by from As always...Osprey Rocks! I needed a mid size pack mostly for urban weekends but I will be taking this on the trail as well! This pack has good volume but not too big. And it is loaded with features!
Date published: 2017-10-20
Rated 3 out of 5 by from Squeaks! I bought this bag to replace my old Stratos 34. I changed to the Manta because unlike the current line up of Stratos packs, it has black shoulder straps. Note to Osprey: Light grey/white lining on shoulder straps and back panel turn yellow or brown over time from sweat/sunscreen/dirt and it's very difficult to clean. The Manta 28 seemed fantastic at first, but I ended up returning it because the pack was squeaking very loudly as I walked with it. Since then, I have met many people hiking with Manta packs and asked them about the noise. While some people do not care about it and some packs are not as loud as mine was, it turns out they all squeak! Osprey has always been my go to brand for backpacks, but now I'm hesitant to buy again.
Date published: 2017-08-13
Rated 5 out of 5 by from Great fit & pockets Gave to my husband for Christmas pressy & he's thrilled, ...hip belt & shoulder straps all great fit, loads of different sized useful pockets. All round great day pack, as per usual Osprey quality....all his recommendations!!
Date published: 2016-12-26
Rated 4 out of 5 by from Good.... but one kind of annoying feature. I use this for travel, commute and hiking. To be honest, its a great pack... but i do have one complaint: the hip belt. The hip belt is pretty rigid, and i dont need it all the time. Im a larger guy (6'2", 240lbs). The hip belt naturally is designed for a more... compact person.... than me. Its good enough for hikes, but during commuting i dont need a hip belt. The foam makes it incredibly thick and, most importantly, impossible to get out of the way when they aren't needed if i could remove the foam or get the hip packs out of the way this pack would go from a 4 start to a 5 star
Date published: 2016-11-01
Rated 5 out of 5 by from My Second I'm awaiting my second Mantra. I purchased my first 2 years ago and it has been through the ringer. I run commute from 5-10 miles per day, rain or shine, hot or cold. I've climbed mountains or just long trails on day hikes. This pack has carried quite a bit in its day. I'm retiring the original as the fabric is starting to show wear from this extreme abuse, but my order is in for my next one. I'll still use this original, just not as roughly as in the past, there are many years left in the pack. Love the design, weight, fit and comfort. You rarely even notice you have the pack on.
Date published: 2016-10-20
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Some reviews say the pack makes noise? Squeaky? What’s that all about? Only reason I’m hesitant.

Asked by: Chap
Thanks for the question! This is actually a common occurrence until a backpack is worn in. Some packs make no noise, some packs make noise at the lumbar. If squeaks do occur, talcum powder and even crc silicone spray can be used. The squeaking is not isolated to just Osprey, it can happen with any brand. If you can "break in" the pack prior to your journey, it shouldn't be any louder than the squeak of your shoes or pants or things like that. It has been my experience that when out in nature people will hear way more sounds just due to the overall quietness. If you purchase the pack and it does squeak and you can't stand it, just let us know and we will get you a return label. Hope this helps!
Answered by: Foxxy Cleopatra
Date published: 2018-01-28

What size pack would be best for me? I am 5'7" and 160 pounds. Bob

Asked by: Bob W
Hey there Bob! Thanks for reaching out to us! Now, to answer this question, we need to get down to the nitty gritty, Bob. You know what I'm talking about. I'm talking about your torso length. For this item, we have two sizes: the S/M which will fit a 16-19" in torso and the M/L which will fit an 18-21" torso. You may be wondering " do i measure my torso??" Glad you asked! HOW TO MEASURE TORSO LENGTH: • Start at the iliac crest, which is the top of the hipbones on the side of your body. These act like a shelf for supporting a pack hipbelt. • From this level on your spine, measure to the C7 vertebrae, the knobby bone at the base of your neck when you put your head down. • Make sure you keep your back as straight as possible while measuring. • This torso measurement determines what size Osprey pack you should carry. Refer to the size charts above to find your ideal size. • If you are in between sizes, it is ideal to try them both on before ordering. Hope this helps you out!!! Hugsies.
Answered by: Rocko Gigsby
Date published: 2018-02-24

Can the mesh pockets hold water bottles or is it only meant for hydration packs?

Asked by: Nancy
Thanks for the question! I grabbed one of these packs from our warehouse and I was able to fit a 16.9 oz water bottle in the side pockets. They are super stretchy pockets, but I don't think you will be able to find any larger of a bottle. I hope this info helps!
Answered by: Foxxy Cleopatra
Date published: 2017-11-29
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- + Size Guide

Osprey Manta AG 28 Pack

SIZE Small / Medium Medium / Large -
Torso Range 16 - 19" / 40.5 - 48 cm 19 - 21" / 48 - 53 cm -
Volume / Pack Capacity 26 liters / 1587 cubic inches 28 liters / 1709 cubic inches -
Dimensions 20 x 13 x 12 in. 22 x 13 x 12 in. -
Weight 2.6 lbs 2.69 lbs -
Hipbelt < 31" / 79 cm 30 - 34" / 76 - 86 cm 33 - 37" / 84 - 94 cm
Pack Weight Capacity 15 - 30 lbs

Please note that the info provided above refers to the torso size the pack will fit, and NOT any dimensions of the pack. Below are some steps for how to get your torso length. You should have someone help take this measurement for you so it is accurate.

• Start at the iliac crest, which is the top of the hipbones on the side of your body. These act like a shelf for supporting a pack hipbelt.
• From this level on your spine, measure to the C7 vertebrae, the knobby bone at the base of your neck when you put your head down.
• Make sure you keep your back as straight as possible while measuring.
• This torso measurement determines what size Osprey pack you should carry. Refer to the size chart above to find your ideal size.
• If you are in between sizes, it is ideal to try them both on before ordering.

• Measure around your hips at your iliac crest, NOT your waist.
• A properly fitted hipbelt rides centered over the hipbones and needs to be very snug.
• The padded portion should wrap well around your hips, leaving a gap of 3 to 6 inches between the tips of the both hip pads when securely tightened.
• Refer to the Hipbelt size info above to help determine your ideal pack size, but again, your torso length is what should determine your pack size, NOT the hipbelt.

- + Warranty Info

ALL MIGHTY GUARANTEE - Osprey's Lifetime Warranty

When Osprey celebrated their 35th anniversary in 2009 they launched The Osprey All Mighty Guarantee. What that means to you is ANY Osprey product purchased at ANY time is covered. Any product, any reason, any era - the all encompassing Osprey lifetime warranty ensures their dedication to superior design, craftsmanship and quality of their products is backed up by their actions to replace or repair a pack so it lasts a lifetime. Or two.

Here are some details.... Osprey will repair for any reason, free of charge, any damage or defect in their products, whether it was purchased back in 1974, or ordered right now from this site. If they are unable to perform a functional repair on your pack, they will happily replace it. Osprey proudly stands behind the All Mighty Guarantee, so much so that it bears the signature of company founder and head designer, Mike Pfotenhauer.

Some Osprey All Mighty Guarantee FAQs:

What do I do if my Osprey pack needs to be repaired?
If you live in the United States and need a repair done on your Osprey pack, you will first need to obtain a Return Authorization number. You can do this by reaching their Returns Department at 866-314-3130, or using the information that is provided with a new Osprey pack.

What do I do if I just need a replacement pack part like a buckle?
Give Osprey a call at 866-314-3130 and they will take care of you.

How long will it take?
You can tell Osprey you need the pack returned by a certain date when you request a Return Authorization number, and they will do their absolute best to meet that deadline.

What if my pack is super dirty and stinks?
Clean it before you send it to Osprey to get repaired. The real reason is that there is a law that says if your gear is too dirty or odiferous (smelly), Osprey is not allowed to repair it and will just return it to you.

Do I have to pay for shipping?
A little bit. You are responsible for the cost of shipping the pack to Osprey, and they will pay shipping to return the pack via UPS or FedEx. Osprey cannot be held responsible if packages get lost in transit, so make sure you get a tracking number when you ship your pack out. Also, if you use expedited shipping be sure to let Osprey know (866-314-3130). They, in turn, will give your pack priority processing and return it using a similar expedited shipping method.

Do I have to register my pack to take advantage of this incredible guarantee, and/or need to be the original owner of my Osprey pack?
No! Osprey's All Mighty Guarantee is truly ALL MIGHTY. If you own an Osprey pack that needs to be repaired they will repair or replace it.

JUST A HEADS UP: If your Osprey product is not repairable and is replaced, the original product will not be returned to you. They will try really really hard to repair your pack, but if they are unable to make a functional repair, they will replace it. For products that are no longer in production you will be contacted by Osprey to discuss replacement options.

All good answers. So what is NOT covered?
• Osprey program packs or any Osprey pack used by outdoor programs are ONLY covered under Osprey's Program Pack Warranty, NOT AMG.
• Size and/or fit issues. Make sure you buy a pack that fits. Check out the size guide on Osprey product pages for more info.
• Personal preferences like colors you don't like, style of the pack, or not enough/too much room in your pack. Check the product description, features, specifications, and size guide to make sure you are ordering the right pack for you.
• Third party Repairs or replacements. Send your Osprey pack to Osprey and Osprey only to get fixed. Easy as that. And don't try fixing things yourself.
• Cosmetic wear and tear including any reasonable aging of your pack that affects only the appearance and not the function of your pack. Be proud of those scars!
• B.A.M.G. (Before All Mighty Guarantee) Repair Work. The All Mighty Guarantee applies only to repairs requested on or after January 1, 2009.
• A Osprey Hydraulics reservoir is covered by a limited 1-year warranty, which is the reasonable lifespan of a reservoir. Pouring and storing of warm/hot or boiling water in your reservoir WILL VOID your warranty, so don't do that. Reservoirs are NOT designed to contain or handle liquids at temperature.