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Osprey Packs Manta AG 20L Backpack
$155.00

Item # OSP004Y

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Item # OSP004Y

Description

Go lighter and smarter.

Step out the door and onto the trail with everything you need for a long walk in the woods tucked into the Osprey Packs Manta AG 20 Hydration Pack. The smallest in the Manta series, it still provides the full set of features, just in a lighter, more compact design. Women-specific shoulder straps, hip-belt, and torso sizing provide a precise fit and enduring comfort, while plentiful pockets and organizing features keep everything tidy and conveniently accessible. It also includes a 2.5 liter reservoir to handle your hydration needs on long treks, and its Anti-Gravity suspension system supports and stabilizes your load so you barely even notice you're wearing a pack.

The Anti-Gravity suspension system uses a combination of different design elements—a LightWire frame, mesh back panel, BioStretch shoulder harness, and AG hip belt—to distribute weight, enhance breathability, and achieve a comfortable fit, no matter how far you roam. The included reservoir also has a hose with a magnetic sternum strap bite valve so you can take quick sips on the go. The main compartment offers room for an extra layer, lunch, and other trail accessories, and dual upper and lower compression straps help you keep your load compact. A helmet attachment loop lets you hook up your brain bucket when you go on climbing or biking missions, and the integrated rain cover can be easily deployed when an unexpected storm rolls in.

  • Includes Hydralics LT 2.5L reservoir with bite valve
  • QuickConnect hose attachment
  • High-tenacity and ripstop fabrics
  • LightWire frame
  • BioStretch shoulder harness
  • Anti-Gravity AG hip belt
  • Dual upper and lower compression straps
  • Integrated removable rain cover
  • Fleece-lined sunglasses pocket

Tech Specs

Material:
[main, bottom] 210D nylon, [accent] 100D nylon ripstop
Volume:
20L (1220cu in)
Support/Suspension:
Anti-Gravity
Waist Belt:
yes
Hydration Compatible:
yes
Reservoir Included:
yes, 2.5L
Access:
front panel
Pockets:
[external] 1 zippered slash, 1 mesh front, 2 mesh side, 2 zippered hipbelt, 1 zippered front, [internal] 1 mesh
Helmet Carry:
yes
Trekking Pole Carry:
yes
Compression:
yes
Rain Cover:
yes
Weight Capacity:
10 - 25 lb
Dimensions:
22 x 12 x 13 in
Claimed Weight:
2 lb 10 oz
Recommended Use:
hiking & camping
Manufacturer Warranty:
lifetime

Size Chart

Osprey

 

Packs
Xenith
 MLXL
Torso 18 - 21in
(46 - 53cm)
20 - 23in
(51 - 58cm)
22 - 25in
(56 - 63cm)
Hip 30 - 34in
(76 - 86cm)
33 - 37in
(84 - 94cm)
> 36in
(> 91cm)
Aether 70, 85
 SML XL
Torso 16 - 19in
(40 - 48cm)
18 - 21in
(46 - 53cm)
20 - 23in
(51 - 58cm)
 22 - 25in
(56 - 63cm)
Hip <31in
(79cm)
30 - 34in
(76 - 86cm)
33 - 37in
(84 - 94cm)
 > 36in
(> 91cm)
Aether 60, Atmos
  SM L 
Torso 16 - 19in
(40 - 48cm)
18 - 21in
(46 - 53cm)
 20 - 23in
(51 - 58cm)
 
Hip <31in
(79cm)
30 - 34in
(76 - 86cm)
 33 - 37in
(84 - 94cm)
 
Waypoint (Men's)
 ML 
Torso 18 - 21in
(46 - 53cm)
20 - 23in
(51 - 58cm)
 
Hip 30 - 34in
(76 - 86cm)
33 - 37in
(84 - 94cm)
 
Kestrel, Talon
 S/MM/L  
Torso 16 - 20in
(40 - 51cm)
19 - 23in
(48 - 58cm)
 
Hip 26 - 45in
(65 - 114cm)
28 - 50in
(70 - 127cm)
 
Stratos, Manta 28/36, Zealot, Syncro
 S/MM/L  
Torso 16 - 19in
(40 - 48cm)
18 - 21in
(46 - 53cm)
 
Hip 26 - 45in
(65 - 114cm)
28 - 50in
(70 - 127cm)
 
Ariel 65
 XSSML 
Torso  14 - 17in
(36 - 43cm)
16 - 19in
(40 - 48cm)
18 - 21in
(46 - 53cm)
20 - 23in
(51 - 58cm)
 
Hip  24 - 45in
(60 - 114cm)
24 - 45in
(60 - 114cm)
27 - 48in
(69- 121cm)
29 - 55in
(72 - 140cm)
 
Xena, Ariel 55/75
 XSSM 
Torso  14 - 17in
(36 - 43cm)
16 - 19in
(40 - 48cm)
18 - 21in
(46 - 53cm)
 
Hip  24 - 45in
(60 - 114cm)
24 - 45in
(60 - 114cm)
27 - 48in
(69- 121cm)
 
Aura, Aura AG
 XSSML 
Torso 14 - 17in
(35.5 - 43cm)
16 - 19in
(40 - 48cm)
18 - 21in
(46 - 53cm)
20 - 23in
(51 - 58cm)
 
Hip 24 - 45in
(60 - 114cm)
24 - 45in
(60 - 114cm)
27 - 48in
(69- 121cm)
29 - 55in
(72 - 140cm)
 
Waypoint (Women's)
 SM 
Torso 16 - 19in
(40 - 48cm)
18 - 21in
(46 - 53cm)
 
Hip 24 - 45in
(60 - 114cm)
27 - 48in
(69- 121cm)
 
Tempest, Kyte
  XS/SS/M  
Torso 13 - 17in
(33 - 43cm)
16 - 20in
(40 - 51cm)
 
Hip 24 - 45in
(60 - 114cm)
26 - 45in
(65 - 114cm)
 
Sirrus, Mira 26/34
  XS/SS/M  
Torso 15 - 18in
(38 - 46cm)
17 - 20in
(43 - 51cm)
 
Hip 24 - 45in
(60 - 114cm)
26 - 45in
(65 - 114cm)
 
Exos, Variant, Mutant
 SML 
Torso 16 - 19in
(40 - 48cm)
18 - 21in
(46 - 53cm)
20 - 23in
(51 - 58cm)
 
Hip 24 - 45in
(60 - 114cm)
27 - 48in
(69- 121cm)
29 - 55in
(72 - 140cm)
 
Kode, Farpoint
 S/MM/L  
Torso 15 - 19in
(38 - 48cm)
18 - 22in
(46 - 56cm)
 
Hip 26 - 45in
(65 - 114cm)
28 - 50in
(70 - 127cm)
 
Volt
 One Size
Torso 17 - 22in
(43 - 56cm)
Hip 25 - 50in
(64 - 127cm)
Manta 20
 One Size
Torso 18 - 21in
(46 - 53cm)
Hip 25 - 50in
(64 - 127cm)
Raptor, Viper
 One Size
Torso 15 - 21in
(38 - 53cm)
Hip 25 - 50in
(64 - 127cm)
Viva
 One Size
Torso 14 - 19in
(36 - 48cm)
Hip 25 - 50in
(64 - 127cm)
Mira 18
 One Size
Torso 15 - 18in
(38 - 46cm)
Hip 25 - 50in
(64 - 127cm)
Raven, Verve, Reverb
 One Size
Torso 14 - 18in
(36 - 46cm)
Hip 25 - 50in
(64 - 127cm)
Rev
 Match to usual apparel size
Poco Child Carrier
 One Size
Torso 15.5 - 21.5in
(39.5 - 54.5cm)
Hip 25 - 50in
(64 - 127cm)
Ace (12 - 16 years)
 One Size
Torso 14 - 20in
(35 - 50cm)
Hip 25 - 50in
(64 - 127cm)
Jib (10 - 14 years)
 One Size 
Torso 13 - 19in
(33 - 48cm)
Hip 25 - 50in
(64 - 127cm)
How to Measure:
For best results, have someone take the measurement for you.
Torso:
Start at the iliac crest (the top of your hipbone that you can feel like a shelf on the side of your body). 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 to keep your back straight while having the measurement taken.
Hip:
Measure around your hips, at your iliac crest, not your waist.

Reviews & Community

REVIEWS

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Avg. ride time: 6m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Everything you need for a day hike

  • Familiarity: I've used it several times

I purchased two Osprey Manta AGs (one 28L and one 20L) to share across my family. We are planning on hiking the Grand Canyon north rim to south rim in one day (24 miles) and looking for day packs to handle all the necessary items for such a hike. The Manta AG line has it all! These packs are beautifully made, durable, and so comfortable with the anti-gravity suspension.

Items I like are:
trekking pole attachments
lightweight frame with compression straps
waist belt is very comfortable
stretch mesh water bottle side pockets
zippered pockets on the  waist belt
high quality materials
and, my favorite, the magnet on the hydration mouth piece!

Keep up the good work Osprey!
A happy satisfied customer.

Hi Randy, Thank you so much for this review. Your trip Rim to Rim sounds wonderful and you will love these packs! Thank you for choosing Osprey,

Leta
Osprey Rep

Exceeded my expectations

    I have several Osprey packs but was looking for something more comfortable than my Tallon series packs I also wanted a hydration pack where the feature is built in and not an hybrid like the Tallon where it is difficult to remove the hydration bladder. The Mantra 20 seemed like a great choice. It shares the same suspension as the Atmos series. I loaded the pack with 15 pounds of clothing,food and water. The pack helped me carry the weight on my hips. My shoulders never tired. My back stayed cool due to the suspension. Highly recommend this pack.

    Thomas, Thank you so much for the kind review! Enjoy your Manta!

    Leta
    Osprey Rep

    Hands down the best Hydration pack ever

    • Familiarity: I've used it several times

    This thing has it all and does it all. Fits like a charm as well. don't leave home without it. This is the best hydration pack on the market, IMO.

    Hey Monica, Thank you so much for the great review. So glad you are stoked with your Manta!

    Happy Trails,

    Leta
    Osprey Rep

    Best Hydration Backpack

    • Familiarity: I've put it through the wringer

    I use this back ALL the time. Hiking, biking, and eve taking my kids to Lagoon. It is a small size, but can still fit a decent amount of storage. The water pack is a great size and stays nice and cool in the backpack. I would buy this over and over again.

    Gerald - thank you for the stellar review!

    Leta
    OR Rep

    It's got my back

    • Familiarity: I've used it several times

    I have the osprey atmos ag and love it so when I found out there was a hydration/day pack with the AG technology I had to have it. And I wasn't surprised to find I love Manta 20 AG too. Incredibly comfortable and makes a heavy load spread evenly and allows air flow. Great pack.

    Perfect gift

    • Familiarity: I gave it as a gift but have feedback to share

    This was a gift to my husband and he just Loved It! Everything about the Osprey Manta AG 20 Hydration Pack was what he was looking for! Ready for a hike!