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Osprey

Osprey Exos 48L backpack

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Features of Osprey Exos 48L

Product description of Osprey Exos 48L backpack

Description summary

The Osprey Exos 48L is an ultralight backpack designed for high-performance hiking. It offers exceptional comfort and ventilation thanks to its AirSpeed™ trampoline suspended mesh backsystem, keeping you cool and dry. This versatile pack features smart storage, including a front shove-it pocket and hipbelt pockets for easy access. Its innovative design allows for weight reduction by removing the top lid, with the FlapJacket™ providing closure. Built with durable, recycled materials, the Exos 48L is perfect for fast-and-light adventures, from weekend trips to thru-hikes

Osprey Exos 48L: Ultralight Performance & Unmatched Comfort for the Trail

Revolutionize your hiking experience with the Osprey Exos 48L, a masterclass in ultralight design engineered for hikers who demand performance without compromise. Designed for both men and women (with its counterpart, the Eja), this adult backpack is the ultimate companion for fast-and-light adventures, from weekend trips to demanding thru-hikes. Falling within the versatile 41-50 L capacity range, the Exos 48 provides ample space for your gear while helping you move faster, further, and with unparalleled comfort on the trail.

The heart of the Exos 48 is its category-leading carry comfort and ventilation system. At its core is the adjustable AirSpeed™ trampoline suspended mesh backsystem. This innovative design creates a generous air space between your back and the pack, promoting exceptional airflow that minimizes sweat and keeps you cool and dry, even during strenuous climbs on hot days. This tensioned back panel works in perfect harmony with the lightweight internal frame, ensuring the load is distributed evenly and comfortably, preventing pressure points and allowing you to focus on the journey ahead, not the weight on your shoulders.

The Exos offers all the benefits of a lightweight pack but without the normal compromises, helping you to move fast and light. Its intelligent design provides remarkable versatility to adapt to any trip. For minimalist pursuits, the removable floating top lid can be detached, and the integrated FlapJacket™ deploys to provide secure, weather-protected main compartment closure, shaving even more weight from your setup. Strategic storage options are built for efficiency on the move. The large, stretch-mesh front shove-it pocket is perfect for stashing a rain jacket or wet gear, while dual-access side pockets keep water bottles secure and accessible. The padded hipbelt not only provides stability but also features dual zippered pockets, keeping your snacks, phone, or GPS within easy reach.

Built for the rigors of the trail, this hiking pack combines durability with its featherlight construction. Removable sleeping pad straps and side compression cords allow you to streamline your load or attach extra gear as needed. Whether you are a seasoned thru-hiker counting every gram or a weekend warrior seeking superior comfort, the Osprey Exos 48 sets the standard for high-performance, ultralight backpacking.

Reservoir not included.

The Exos and Eja are high-performance ultra-light backpacking packs providing category-leading carry comfort and ventilation.

Features:
- Removable Top Lid with FlapJacket™ for use without a lid
- Adjustable AirSpeed™ Trampoline Suspended Mesh Backsystem
- Front Shove-It Pocket
- Padded Hipbelt with Dual Hipbelt Pockets
- Removable Sleeping Pad Straps and Side Compression Cords

Specifications:
- Backsystem: AntiGravity™ Backsystem with Cam-Lock Adjustment
- Materials: 100D High Tenacity Nylon Ripstop Recycled
- Dimension: 51H x 29W x 23D cm
- Size: 1.26kg

Technical specifications of Osprey Exos 48L

  • Capacity

    48 L

  • Weight

    1.26 kg

  • Back panel ventilation

    Trampoline Mesh

  • Material density

    100D High Tenacity Nylon Ripstop Recycled

  • Hydration system compatible

    Yes

  • Hip belt pockets

    Yes

  • Color

    Grey

  • Capacity

    41-50 L

  • Gender

    Men

  • Gender

    Women

  • Age

    Adult

  • Recommended Use

    Hiking

  • Structure

    Internal frame

Features of Osprey Exos 48L

Color Grey

Color

Grey

Capacity 41-50 L

Capacity

41-50 L

Gender Men

Gender

Men

Women

Women

Age Adult

Age

Adult

Recommended Use Hiking

Recommended Use

Hiking

Structure Internal frame

Structure

Internal frame

Key differentiators

Constructed from durable 100D High Tenacity Nylon Ripstop Recycled material.

Designed with an internal frame and is compatible with hydration systems for long-distance hiking.

Features an adjustable AirSpeed™ trampoline suspended mesh backsystem for superior ventilation.

Includes convenient storage options like a front shove-it pocket and dual zippered hipbelt pockets.

Offers a versatile, removable top lid with an integrated FlapJacket™ for a lighter, minimalist configuration.

Technology in Osprey Exos 48L backpack

Energy rating

Warnings

5 / 5

8 Reviews

What our customers are saying about Osprey Exos 48L backpack

This lightweight hiking backpack offers excellent capacity for multi-day treks and wild camping. Its comfortable fit and effective back ventilation system keep you dry and supported. While some find the hip belt pockets a bit tight for larger phones or requiring two hands to zip, the overall quality, durability, and practical features like side strap pockets are highly praised. Ideal for various hiking lengths, this lightweight backpack provides a balanced and comfortable carry

Osprey Exos 48L backpack

Light, comfortable, and really well ventilated

2026/09/27

Alexander

Very light and comfortable, with excellent back ventilation. Smart pockets, and the removable lid makes it easy to go even lighter. Great for fast hikes.

Osprey Exos 48L backpack

Late

2026/06/08

K

Product OK. Delivered several days later than they estimated. Ignore the estimated delivery date and assume it'll take about 10 days.

Osprey Exos 48L backpack

Good product

2025/03/16

Mathias

Good product. I'm training for the Mammoth March. The only thing is that the hip belt could have been more padded around the hip bones and the surface area could have been larger. Otherwise, a great backpack. I hope the material lasts a long time.

Osprey Exos 48L backpack

Very good purchase

2026/03/14

José Antonio

A backpack with a very good capacity and a super light weight for a backpack of this type and quality, I think there´s nothing to say, Osprey is top. To find a flaw, I would say that the pockets are a little small for those of us who carry a large phone

Osprey Exos 48L backpack

Almost perfect!

2025/04/23

Anouche

Perfect. Just one minor flaw: the waistband pockets are a tad too small to fit an iPhone Pro Max. It's tight inside, and I'm worried it might tear over time.

Osprey Exos 48L backpack

Sac osprey 48

2025/03/10

Andre

I order regularly from TREKKINN, always fast and perfect deliveries. The OSPREY 48L bag is perfect, ideal balance for carrying, excellent support and for a 48 l, it is suitable for hikes of several days.

Osprey Exos 48L backpack

Great pack

2025/01/01

Ian

I already own an Osprey Atmos AG 65 which I have used on multi day treks, and I was very pleased with the Airspeed back system which is comfortable and ventilates your back helping to keep you dry when you are perspiring heavily. I decided to get an Exos for shorter adventures, very pleased with it Being able

Osprey Exos 48L backpack

Exos 48

2024/09/22

Ian

Great quality comfortable fit

Write a review about this product

Answer the question

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The question has already been answered, thank you very much for trying to help another customer. We will count on you for future questions.

Include AI Generated questions and answers

2026-09-09

Generated by AI and verified

Osprey Exos 48L backpack

Is the Osprey Exos 48L backpack suitable for multi-day hikes?

Answer of Generated by AI and verified

Yes, with a capacity of 48 liters, the Osprey Exos 48L is designed for multi-day hiking and ultralight adventures. It provides ample space for essential gear while maintaining a lightweight profile.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Osprey Exos 48L backpack

What materials are used in the Osprey Exos 48L backpack?

Answer of Generated by AI and verified

The Osprey Exos 48L is constructed from 100D High Tenacity Nylon Ripstop Recycled material. The product description also notes that it is made with 100% recycled materials.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Osprey Exos 48L backpack

Does this backpack have a specific frame or back system for support and ventilation?

Answer of Generated by AI and verified

Yes, this backpack features an internal frame for structure and support. For ventilation, it uses an AntiGravity™ Backsystem and a trampoline mesh back panel, which is designed to promote airflow between the pack and your back.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Osprey Exos 48L backpack

Is the Osprey Exos 48L backpack worth the investment for avid hikers?

Answer of Generated by AI and verified

The Osprey Exos 48L backpack offers a blend of ultralight design and exceptional comfort, making it a valuable choice for avid hikers seeking performance without compromise.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Osprey Exos 48L backpack

What is the capacity of the Osprey Exos backpack?

Answer of Generated by AI and verified

This Osprey Exos backpack has a capacity and volume of 48 liters, making it suitable for mid-length trips and ultralight multiday adventures.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Osprey Exos 48L backpack

Is the Osprey Exos 48L compatible with a hydration reservoir?

Answer of Generated by AI and verified

Yes, the Osprey Exos 48L is hydration compatible, meaning it is designed to accommodate a hydration system. Please note that the reservoir itself is not included with the backpack.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Osprey Exos 48L backpack

Does this backpack have hip belt pockets?

Answer of Generated by AI and verified

Yes, the Osprey Exos 48L features a padded hipbelt with dual hipbelt pockets, providing convenient access to small items while you're on the move.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Osprey Exos 48L backpack

Can the top lid of the Exos 48L be removed?

Answer of Generated by AI and verified

Yes, the backpack is designed with a removable top lid. When the lid is removed, an integrated FlapJacket™ can be used to cover the main compartment opening, which is ideal for a more minimalist carry.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Osprey Exos 48L backpack

What is the material used in the Osprey Exos 48L backpack?

Answer of Generated by AI and verified

The Osprey Exos 48L backpack is made from 100D High Tenacity Nylon Ripstop Recycled material.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Osprey Exos 48L backpack

Is the Osprey Exos 48L a good choice for thru-hiking?

Answer of Generated by AI and verified

The Osprey Exos 48L is an excellent choice for many thru-hikers due to its ultralight design, 48-liter capacity, and advanced ventilation system. Its features are engineered for those looking to move fast and light on long-distance trails.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Osprey Exos 48L backpack

How does this pack carry trekking poles?

Answer of Generated by AI and verified

This backpack features the Stow-on-the-Go pole attachment system, which allows you to quickly attach and carry your trekking poles without needing to take the pack off.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Osprey Exos 48L backpack

How does the Osprey Exos 48L compare to the Osprey Rook 50?

Answer of Generated by AI and verified

The Osprey Exos 48L has a capacity of 48 liters, while the Osprey Rook 50 offers a slightly larger capacity at 50 liters. The Exos 48L is designed with an emphasis on ultralight performance, featuring an AntiGravity™ Backsystem and 100D recycled nylon material. You may wish to compare the features of each to see which better suits your hiking needs.

* Generated by AI based on customer and product data

2025-06-11

Sergei

Osprey Exos 48L backpack

Can anyone share experience of choosing right size for this backpack? There is two options - is the difference only in volume or the belt has different size / width?

Answer of Bart

The 48 has a larger volume than the 38, the straps are wider and it is meant for more kilos (so also weight). If you mean the difference between S/M vs M/L then it is the back panel and the length of the belly band.

* Generated by AI based on customer and product data

2026-07-11

Generated by AI and verified

Osprey Exos 48L backpack

Is the Osprey Exos 48L a good choice for ultralight backpacking?

Answer of Generated by AI and verified

Yes, the Osprey Exos 48L is specifically engineered for ultralight backpacking. It weighs just 1.26 kg and features a minimalist design, including a removable floating lid, to help you reduce pack weight for fast-and-light adventures.

* Generated by AI based on customer and product data

2026-07-11

Generated by AI and verified

Osprey Exos 48L backpack

What kind of back panel does the Exos 48L have for ventilation?

Answer of Generated by AI and verified

This backpack features an AirSpeed™ trampoline suspended mesh back panel. This design creates a space between your back and the pack, promoting exceptional airflow to help keep you cool and dry on the trail.

* Generated by AI based on customer and product data

2026-07-11

Generated by AI and verified

Osprey Exos 48L backpack

Is the Osprey Exos 48L suitable for carrying a hydration bladder?

Answer of Generated by AI and verified

Yes, the Osprey Exos 48L is hydration compatible, so it is designed to accommodate a hydration reservoir for easy access to water. Please be aware that the reservoir itself is not included with the backpack.

* Generated by AI based on customer and product data

Ask a technical question about this product

Frequently bought together
Best sellers

Use cases

Multi-Day Hiking & Thru-Hiking 100% Fit

Engineered for elite hikers undertaking multi-day treks, its 48L capacity provides ample space for essential gear. The cutting-edge AntiGravity™ backsystem and trampoline mesh panel deliver top-tier ventilation and load stability, crucial for maintaining peak performance over long distances.

Capacity: 48 L,AntiGravity™ Backsystem with Cam-Lock Adjustment,Back Panel Ventilation: Trampoline Mesh,Hydration System Compatible

Ultralight Backpacking 90% Fit

For the performance-obsessed backpacker focused on minimizing weight, this pack offers a professional-grade solution. Features like the removable top lid with FlapJacket™ and removable sleeping pad straps allow for a customized, stripped-down configuration to achieve an ultimate lightweight setup.

Removable Top Lid with FlapJacket™ for use without a lid,Removable Sleeping Pad Straps and Side Compression Cords,Material: 100D High Tenacity Nylon Ripstop Recycled,Internal frame structure

Warm-Weather Expeditions 80% Fit

This pack is a top-tier choice for demanding hikes in warm climates where ventilation is paramount. The trampoline mesh back panel creates exceptional airflow, reducing sweat and increasing comfort, allowing for sustained high-level effort during strenuous activity.

Back Panel Ventilation: Trampoline Mesh,AntiGravity™ Backsystem with Cam-Lock Adjustment,Hydration System Compatible,Padded Hipbelt with Dual Hipbelt Pockets

Organized Gear Hauling 70% Fit

For the technical hiker who requires quick access to gear, this pack provides elite organizational features. The large front shove-it pocket is perfect for stashing layers, while dual hipbelt pockets keep competition essentials like navigation tools or nutrition readily accessible without breaking stride.

Front Shove-It Pocket,Padded Hipbelt with Dual Hipbelt Pockets,Removable Sleeping Pad Straps,Side Compression Cords

Best for

Best for Experienced Hikers

This pack's 48L capacity, internal frame, and advanced AntiGravity™ Backsystem are designed for serious hikers undertaking multi-day trips who prioritize comfort and load stability.

Capacity: 48 L, Structure: Internal frame, Backsystem: AntiGravity™ Backsystem with Cam-Lock Adjustment, Intended use: hiking

Ideal for Organized Overnighters

With a removable top lid, a large front shove-it pocket, and dual hipbelt pockets, this pack offers multiple storage options to keep gear organized and accessible.

Features: Removable Top Lid with FlapJacket™ for use without a lid, Front Shove-It Pocket, Padded Hipbelt with Dual Hipbelt Pockets

Top Choice for Gear Seekers

Featuring a trampoline mesh back panel for superior ventilation and construction from high-tenacity recycled nylon, this pack delivers elite comfort and durability.

Back panel ventilation: Trampoline Mesh, Material density: 100D High Tenacity Nylon Ripstop Recycled

Benefits

FunctionalCarry Your Gear Comfortably and Securely

Designed for hiking, this backpack offers a generous 48L capacity to hold all your essential gear. The internal frame structure and AntiGravity™ Backsystem work together to provide stability and comfortable weight distribution on the trail.

Structure: Internal frame

Backsystem: AntiGravity™ Backsystem with Cam-Lock Adjustment

Intended use: hiking

FunctionalStay Cool and Hydrated on the Move

Engineered for active use, this pack helps you stay comfortable and hydrated while exploring. The Trampoline Mesh back panel provides ventilation to keep you cool, and its hydration compatible design ensures you can easily carry a water system for long treks.

Back panel: Trampoline Mesh

Back panel ventilation: Trampoline Mesh

Hydration compatible: yes

Hydration system compatible: Yes

Ideal buyer profiles

The Long-Distance Hiker

This individual embarks on multi-day treks and through-hikes, prioritizing low weight, comfort, and efficient gear organization. They cover significant distances and need a pack that can handle a substantial load without causing fatigue.

With a 48L capacity, this pack is sized for extended trips. The AntiGravity™ Backsystem and trampoline mesh back panel provide excellent ventilation and load distribution, which is crucial for comfort over long distances. Features like the removable top lid for lighter loads, hydration compatibility, and multiple pockets support the needs of a serious hiker.

The Weekend Backpacker

This person enjoys one or two-night trips into the backcountry. They need a versatile pack that is comfortable for moderate distances and has enough space for essential gear without being overly bulky.

The 48L volume is ideal for weekend adventures, offering ample space for gear. The padded hipbelt with dual pockets and front shove-it pocket provide convenient access to essentials on the trail. Its internal frame and advanced suspension ensure a comfortable carry, making it a reliable choice for regular weekend use.

The Gear-Conscious Trekker

This hiker invests in high-performance equipment that offers advanced features and durability. They appreciate technical details, adjustability, and materials that enhance their outdoor experience.

This Osprey pack meets the demand for technical performance with its AntiGravity™ Backsystem featuring Cam-Lock adjustment for a fine-tuned fit. The use of 100D High Tenacity Nylon Ripstop demonstrates a focus on durability, while features like the FlapJacket™ for lidless use and removable straps offer the customization this buyer values.

Competitive features

When selecting a backpack for multiday adventures, key factors include capacity, comfort, and specialized features. The Osprey Exos 48L is engineered for ultralight performance, but it's important to see how it stands against other options in the market.

Where it excels

The Osprey Exos 48L is specifically designed for ultralight performance, featuring a refined AirSpeed suspension system for maximum airflow and a removable floating lid with an integrated FlapJacket for minimalist carrying. Constructed with 100% recycled materials, this pack appeals to environmentally conscious hikers without compromising on features like hipbelt pockets and the Stow-on-the-Go pole attachment. It offers a 48-liter capacity, positioning it as an ideal choice for ultralight, multiday trips where every ounce counts.

Consider alternatives if...

Verdict

The Osprey Exos 48L is an excellent choice for experienced hikers and backpackers who prioritize an ultralight design and superior ventilation for multiday adventures. Its focus on minimizing weight, combined with features like the AirSpeed suspension and Stow-on-the-Go pole attachment, makes it a highly specialized pack. While it's a strong performer in its niche, those needing different capacities or features may want to explore other options.

Specs comparison

Favorite On Favorite Off
Favorite On Favorite Off
Favorite On Favorite Off
Favorite On Favorite Off
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Capacity48 L50 L18 L44 L34 L44 L
Hydration Compatibletruetruetruetruetruetrue
Intended Usehikinghikinghikinghikinghikinghiking
Department NameLuggage & Bags > Backpacksmen--Luggage & Bags > Backpacksadult
Suspension SystemSnuggle UpAirSpeed® Suspended Mesh BackpanelSnuggle UpAirScapeSnuggle UpSnuggle Up
Volume48 L50 L18 L44 L34 L44 L
Back PanelTrampoline MeshAirspeed Suspended Mesh BackpanelYesAirScapeYesYes
Material Density100D High Tenacity Nylon Ripstop Recycled-210D nylon100D100D X 210D nylon100D X 210D nylon
Back Panel VentilationTrampoline MeshAirSpeed Suspended Mesh BackpanelYesAirScapeYesYes
Hydration System CompatibleYesYesYesYesYesYes

Specs vs competitors

Favorite On Favorite Off
Favorite On Favorite Off
Favorite On Favorite Off
Favorite On Favorite Off
Favorite On Favorite Off
Capacity48 L45 L70 l38.0 L40 L65 L
Hydration Compatibletruetruetruetruetruefalse
Intended Usehikinghiking-hikinghikinghiking
Department NameLuggage & Bags > BackpacksLuggage & Bags > BackpacksLuggage & Bags > BackpacksLuggage & Bags > BackpacksLuggage & Bags > BackpacksLuggage & Bags
Suspension SystemSnuggle Up3DM+Snuggle UpSnuggle Up-Snuggle Up
Volume48 L45 L70 L38 L40 L65 L
Back PanelTrampoline MeshYesTergolight back systemYesSwisswool TEC KNIT back systemComfort Space Pro
Material Density100D High Tenacity Nylon Ripstop Recycled--600D-100D
Back Panel VentilationTrampoline MeshYesTergolight back systemYesSwisswool TEC KNIT back systemYes
Hydration System CompatibleYesYesYesYesYesNo
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