Osprey Exos Pro 55L Men's Backpacking Backpack, S/M

The Osprey Exos Pro 55L is a men's backpacking pack with a ventilated AirSpeed suspension, adjustable capacity and a removable lid. At the listed 2.08 pounds, it is positioned for lighter long-distance loads, while customer feedback reports mixed views on capacity and pocket space.

At a glance

Suspended mesh backpanel is designed to promote airflow behind the wearer.
Remove the lid to shed the stated 74 g / 2.6 oz. The integrated FlapJacket secures the opening when the lid is off.
Compression straps and a stretch-sided front pocket offer ways to manage changing loads.
Internal hydration sleeve includes a hose port and Hydraclip.

Price

$239.95Save 27%

Reference price: ~~$330.00~~

Price checked: Nov 14, 2026

View offer

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Pros and cons

Pros

Removable lid and compression straps make capacity more adaptable to a changing load.
The hydration sleeve, hose port and Hydraclip support a reservoir setup.
The listing gives a clear pack weight of 2.08 pounds.

Technical specifications

12 specifications

Identity
Brand	Osprey
Model	10004714
Size	S/M
Color	Dale Grey/Agam Blue
Department	mens

Dimensions and weight
Dimensions listed	12.2 x 3.1 x 28.3 inches
Weight listed	2.08 pounds

Pack features
Back suspension	A tensioned mesh backpanel keeps the weight off your back, enabling highly ventilated carrying comfort
Capacity adjustment	Compression straps and removable lid allow for functional capacity adjustment
Removable lid	Sheds 74 g / 2.6 oz. when the top lid is removed. An integrated FlapJacket secures the main compartment opening, providing weather protection and load stability when the lid isn't used
Hydration	Internal hydration sleeve with center back hose port and Osprey Hydraclip for easier reservoir hanging
Front pocket	Large front fabric compression pocket with stretch side panels accommodates overloads

What to know before buying

Customer feedback reports mixed opinions on capacity and spaciousness. One reported fitting a full backpacking kit including a bear can, while another found capacity limiting. A customer also said the belt pockets could be larger. Consider your own gear volume and pocket needs.

Who is it for?

A good fit for

Long-distance backpackers prioritizing a light listed pack weight and ventilated backpanel.
Hikers who want a removable lid, capacity adjustment and an internal hydration sleeve.

Less suited to

Buyers who need confirmed high-volume belt pockets or a capacity that accommodates their particular gear without checking fit.

Osprey Exos Pro 55L Men's Backpacking Backpack, S/M · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.2 / 5 · 29 ratings

5 stars63%63%
4 stars13%13%
3 stars13%13%
2 stars5%5%
1 star6%6%

Customer feedback speaks positively about perceived quality, while capacity and spaciousness receive mixed comments. One customer said the pack held a complete backpacking setup including a bear can, but another found capacity limiting, and one noted the belt pockets could be larger. With a listed 55L volume and adjustable compression and lid, buyers should judge fit against their own gear rather than assume the reported experiences will match.

Positive themes

Customers describe the backpack's quality positively.

Mixed feedback

Capacity and spaciousness receive mixed feedback, including a report that belt pockets could be larger.

Frequently asked questions

Can the pack be used without its top lid?

Yes. The listing says the lid is removable and states that removing it sheds 74 g / 2.6 oz. An integrated FlapJacket secures the main opening when the lid is removed.

Does it have a hydration reservoir sleeve?

The listing specifies an internal hydration sleeve, a center-back hose port and an Osprey Hydraclip for hanging a reservoir.

How should I interpret customer comments about capacity?

Feedback is mixed. One customer reported fitting a full backpacking kit including a bear can, while another found capacity limiting. Compare your gear and required pocket space with the pack before buying.