11 models to compare

Do larger hydration packs weigh more?

Mostly. The four 3 L packs weigh 790 to 1,340 g and the 2 L packs 320 to 490 g, yet the 1.5 L Rim Runner X22 outweighs every 2 L pack at 690 g.

Water and gear add to that carried load.

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With no preferences selected: Classic Light 70oz is one option to compare.

No hands-on testingMethod and sources

Classic Light 70oz · first with a product link

Model / item: CB-2404

Included reservoir: 2 L.
Weight: 410 g.

What to note:

Exterior dimensions: 40 cm x 16 cm x 23 cm.

View at CamelBak

If you choose 1.5 L for included reservoir, the first option with a product link becomes Hydrobak Light 50oz.

11 models compared; 11 have a product-page link.

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How much reservoir capacity do you want?

Choices for included reservoir

Which pack weight do you want to compare?

Choices for weight

Which exterior dimensions do you want to compare (cm)?

Choices for exterior dimensions

11 models · 11 with comparison specs
11 with product links

The picks

5 options to compare

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An option to compare

Classic Light 70oz

Included reservoir: 2 L.

Model / item: CB-2404

Key details

Weight: 410 g.

What to note

Exterior dimensions: 40 cm x 16 cm x 23 cm.

Compare specs: Included reservoir: 2 L here; 2.5 L on Cloud Walker 18 Hydration Pack 85 oz.

Included reservoir: 2 LWeight: 410 gExterior dimensions: 40 cm x 16 cm x 23 cm

See all 3 specs

Included reservoir2 L

Weight410 g

Exterior dimensions40 cm x 16 cm x 23 cm

3 of 3 specs available · source checked September 26, 2026 · Source ↗
CamelBak · Product page checked September 26, 2026

View at CamelBak Compare

Included reservoir: 1.5 L

Hydrobak Light 50oz

Included reservoir: 1.5 L.

Model / item: CB-2405

Key details

Weight: 160 g.

What to note

Exterior dimensions: 35 cm x 15 cm x 23 cm.

Compare specs: Included reservoir: 1.5 L here; 2 L on Lobo 9 Hydration Pack 70 oz.

Included reservoir: 1.5 LWeight: 160 gExterior dimensions: 35 cm x 15 cm x 23 cm

See all 3 specs

Included reservoir1.5 L

Weight160 g

Exterior dimensions35 cm x 15 cm x 23 cm

3 of 3 specs available · source checked September 26, 2026 · Source ↗
CamelBak · Product page checked September 26, 2026

View at CamelBak Compare

Included reservoir: 2.5 L

Cloud Walker 18 Hydration Pack 85 oz

Included reservoir: 2.5 L.

Model / item: CB-2531

Key details

Weight: 500 g.

What to note

Exterior dimensions: 46 cm x 23 cm x 26 cm.

Compare specs: Included reservoir: 2.5 L here; 3 L on Fourteener 26 Hydration Hiking Pack with Crux 3L Reservoir.

Included reservoir: 2.5 LWeight: 500 gExterior dimensions: 46 cm x 23 cm x 26 cm

See all 3 specs

Included reservoir2.5 L

Weight500 g

Exterior dimensions46 cm x 23 cm x 26 cm

3 of 3 specs available · source checked September 26, 2026 · Source ↗
CamelBak · Product page checked September 26, 2026

View at CamelBak Compare

Weight: 320 g

Octane 12 Hydration Hiking Pack with Fusion 2L Reservoir

Weight: 320 g.

Model / item: CB-2827

Key details

Exterior dimensions: 48 cm x 17 cm x 24 cm.

What to note

Included reservoir: 2 L.

Compare specs: Weight: 320 g here; 430 g on Octane 16 Hydration Hiking Pack with Fusion 2L Reservoir.

Included reservoir: 2 LWeight: 320 gExterior dimensions: 48 cm x 17 cm x 24 cm

See all 3 specs

Included reservoir2 L

Weight320 g

Exterior dimensions48 cm x 17 cm x 24 cm

3 of 3 specs available · source checked September 26, 2026 · Source ↗
CamelBak · Product page checked September 26, 2026

View at CamelBak Compare

Exterior dimensions: 45 cm x 19 cm x 25 cm

Octane 16 Hydration Hiking Pack with Fusion 2L Reservoir

Included reservoir: 2 L.

Model / item: CB-2826

Key details

Weight: 430 g.

What to note

Exterior dimensions: 45 cm x 19 cm x 25 cm.

Compare specs: Included reservoir: 2 L here; 1.5 L on Rim Runner X22 Hiking Hydration Pack with Crux 1.5L Reservoir.

Included reservoir: 2 LWeight: 430 gExterior dimensions: 45 cm x 19 cm x 25 cm

See all 3 specs

Included reservoir2 L

Weight430 g

Exterior dimensions45 cm x 19 cm x 25 cm

3 of 3 specs available · source checked September 26, 2026 · Source ↗
CamelBak · Product page checked September 26, 2026

View at CamelBak Compare

Comparing Classic Light 70oz · Cloud Walker 18 Hydration Pack 85 oz

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The facts that differ

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Published specification comparison
Spec	Classic Light 70ozModel / item: CB-2404No preferences selected.	Cloud Walker 18 Hydration Pack 85 ozModel / item: CB-2531No preferences selected.
Included reservoir	2 L	2.5 L
Weight	410 g	500 g
Exterior dimensions	40 cm x 16 cm x 23 cm	46 cm x 23 cm x 26 cm

Classic Light 70oz

Model / item: CB-2404

No preferences selected.

Included reservoir: 2 L
Weight: 410 g
Exterior dimensions: 40 cm x 16 cm x 23 cm

Cloud Walker 18 Hydration Pack 85 oz

Model / item: CB-2531

No preferences selected.

Included reservoir: 2.5 L
Weight: 500 g
Exterior dimensions: 46 cm x 23 cm x 26 cm

Classic Light 70oz

View at CamelBak

Cloud Walker 18 Hydration Pack 85 oz

View at CamelBak

Compare all 11 models

— = no verified listing yet. The published order is independent of links.

All models and their decision specs
Product	How it compares	Key spec	Compare	Action
Classic Light 70oz	Compared with Cloud Walker 18 Hydration Pack 85 oz: included reservoir, 2 L vs 2.5 L. Model / item: CB-2404	Included reservoir: 2 L	Compare	View at CamelBak
Cloud Walker 18 Hydration Pack 85 oz	Compared with Fourteener 26 Hydration Hiking Pack with Crux 3L Reservoir: included reservoir, 2.5 L vs 3 L. Model / item: CB-2531	Included reservoir: 2.5 L	Compare	View at CamelBak
Fourteener 26 Hydration Hiking Pack with Crux 3L Reservoir	Compared with Fourteener 32 Hydration Hiking Pack with Crux 3L Reservoir: weight, 810 g vs 980 g. Model / item: CB-2864	Included reservoir: 3 L	Compare	View at CamelBak
Fourteener 32 Hydration Hiking Pack with Crux 3L Reservoir	Compared with H.A.W.G. 20, 3L: weight, 980 g vs 1,340 g. Model / item: CB-2812	Included reservoir: 3 L	Compare	View at CamelBak
H.A.W.G. 20, 3L	Compared with Hydrobak Light 50oz: included reservoir, 3 L vs 1.5 L. Model / item: CB-3037	Included reservoir: 3 L	Compare	View at CamelBak
Hydrobak Light 50oz	Compared with Lobo 9 Hydration Pack 70 oz: included reservoir, 1.5 L vs 2 L. Model / item: CB-2405	Included reservoir: 1.5 L	Compare	View at CamelBak
Lobo 9 Hydration Pack 70 oz	Compared with M.U.L.E. EVO 12 Hydration Pack 100 oz.: included reservoir, 2 L vs 3 L. Model / item: CB-2656	Included reservoir: 2 L	Compare	View at CamelBak
M.U.L.E. EVO 12 Hydration Pack 100 oz.	Compared with Octane 12 Hydration Hiking Pack with Fusion 2L Reservoir: included reservoir, 3 L vs 2 L. Model / item: CB-2519	Included reservoir: 3 L	Compare	View at CamelBak
Octane 12 Hydration Hiking Pack with Fusion 2L Reservoir	Compared with Octane 16 Hydration Hiking Pack with Fusion 2L Reservoir: weight, 320 g vs 430 g. Model / item: CB-2827	Included reservoir: 2 L	Compare	View at CamelBak
Octane 16 Hydration Hiking Pack with Fusion 2L Reservoir	Compared with Rim Runner X22 Hiking Hydration Pack with Crux 1.5L Reservoir: included reservoir, 2 L vs 1.5 L. Model / item: CB-2826	Included reservoir: 2 L	Compare	View at CamelBak
Rim Runner X22 Hiking Hydration Pack with Crux 1.5L Reservoir	Included reservoir: 1.5 L; Weight: 690 g. Model / item: CB-2943	Included reservoir: 1.5 L	Compare	View at CamelBak

Classic Light 70oz

Compared with Cloud Walker 18 Hydration Pack 85 oz: included reservoir, 2 L vs 2.5 L.

Model / item: CB-2404

Included reservoir: 2 L

CompareView at CamelBak

Cloud Walker 18 Hydration Pack 85 oz

Compared with Fourteener 26 Hydration Hiking Pack with Crux 3L Reservoir: included reservoir, 2.5 L vs 3 L.

Model / item: CB-2531

Included reservoir: 2.5 L

CompareView at CamelBak

Fourteener 26 Hydration Hiking Pack with Crux 3L Reservoir

Compared with Fourteener 32 Hydration Hiking Pack with Crux 3L Reservoir: weight, 810 g vs 980 g.

Model / item: CB-2864

Included reservoir: 3 L

CompareView at CamelBak

Fourteener 32 Hydration Hiking Pack with Crux 3L Reservoir

Compared with H.A.W.G. 20, 3L: weight, 980 g vs 1,340 g.

Model / item: CB-2812

Included reservoir: 3 L

CompareView at CamelBak

H.A.W.G. 20, 3L

Compared with Hydrobak Light 50oz: included reservoir, 3 L vs 1.5 L.

Model / item: CB-3037

Included reservoir: 3 L

CompareView at CamelBak

Hydrobak Light 50oz

Compared with Lobo 9 Hydration Pack 70 oz: included reservoir, 1.5 L vs 2 L.

Model / item: CB-2405

Included reservoir: 1.5 L

CompareView at CamelBak

Lobo 9 Hydration Pack 70 oz

Compared with M.U.L.E. EVO 12 Hydration Pack 100 oz.: included reservoir, 2 L vs 3 L.

Model / item: CB-2656

Included reservoir: 2 L

CompareView at CamelBak

11 catalog models

How the comparison works

Your choices are compared with each model’s product details. A missing or conflicting value stays unknown and cannot satisfy a choice you select. The starting order helps you browse; it does not rate real-world performance.

Source dates appear with each link below. A source date does not confirm today's price or stock.

Finder methodology Report a correction

Sources for all 11 models

Classic Light 70oz: Source 1 ↗ · September 26, 2026
Cloud Walker 18 Hydration Pack 85 oz: Source 1 ↗ · September 26, 2026
Fourteener 26 Hydration Hiking Pack with Crux 3L Reservoir: Source 1 ↗ · September 26, 2026
Fourteener 32 Hydration Hiking Pack with Crux 3L Reservoir: Source 1 ↗ · September 26, 2026
H.A.W.G. 20, 3L: Source 1 ↗ · September 26, 2026
Hydrobak Light 50oz: Source 1 ↗ · September 26, 2026
Lobo 9 Hydration Pack 70 oz: Source 1 ↗ · September 26, 2026
M.U.L.E. EVO 12 Hydration Pack 100 oz.: Source 1 ↗ · September 26, 2026
Octane 12 Hydration Hiking Pack with Fusion 2L Reservoir: Source 1 ↗ · September 26, 2026
Octane 16 Hydration Hiking Pack with Fusion 2L Reservoir: Source 1 ↗ · September 26, 2026
Rim Runner X22 Hiking Hydration Pack with Crux 1.5L Reservoir: Source 1 ↗ · September 26, 2026

Water capacity and the empty pack pull weight in different directions

CamelBak Hydrobak Light carries a 1.5 L reservoir and weighs 160 g empty. Classic Light has a 2 L reservoir and weighs 410 g. If you need the larger reservoir, compare what the pack itself adds before water or equipment goes inside.

Reservoir capacities span 1.5 to 3 L across 11 CamelBak packs. M.U.L.E. EVO and H.A.W.G. both have 3 L reservoirs, but their empty weights are 790 g and 1,340 g respectively. Equal water capacity does not mean equal carry weight or equal cargo space.

CamelBak’s reservoir, weight and exterior measurements form this comparison, with no filled-pack hiking observations. Exterior dimensions do not supply cargo volume or torso fit. Assess the selected pack’s fit and storage layout separately, and keep the exact model and color attached to its measurements. Water and gear increase your carried load.

Before you buy

Do the pack weights include water?

These are the listed pack weights. Water, food, layers and gear add to the carried load, so plan around the full load.

Do the three measurements show cargo space?

They're exterior sizes in centimeters, not a volume, and no cargo volume or torso size is included here. The Lobo 9 is 47 cm by 6.3 cm by 22 cm and the Fourteener 32 is 55 cm by 26 cm by 32 cm; the number in a pack's name isn't defined on this page, so try a pack on or read its fit notes before a long day.

Which reservoir comes with each pack?

Nine come with CamelBak's Crux reservoir, and the Octane 12 and Octane 16 come with a Fusion reservoir instead. With a reservoir filter active, Cloud Walker 18 matches the exact 2.5 L choice; it also remains eligible with No preference, subject to your other choices. Mostly. The four 3 L packs weigh 790 to 1,340 g and the 2 L packs 320 to 490 g, yet the 1.5 L Rim Runner X22 outweighs every pack in the middle reservoir group at 690 g. Hydrobak Light is the lightest carry at 160 g, with the same reservoir volume as Rim Runner X22. The largest reservoir group starts at the minimum weight above.