Verdict
Head-to-head · Best Hydration Packs

Osprey Manta 24 vs Osprey Skarab 18

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

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The short answer

Osprey Manta 24 comes out ahead by a clear margin (4.4 vs 3.9). Osprey Manta 24 is best for: Hikers carrying dense technical gear who prioritize load distribution and breathability. Read the strengths below before deciding.

Osprey Manta 24
Higher ratedRanked #1 in Best Hydration Packs
Osprey Manta 24
3 sources$220as of Oct 17

The Osprey Manta 24 features an AirSpeed tensioned mesh back panel and a 10.2 cm adjustable torso harness, which Advnture found creates a premium carrying sensation with plush EVA padding. It includes a 2.5L Hydraulics LT reservoir and rain cover out of the box, while Mountainsforeverybody noted the suspension effectively detaches the load for improved breathability during strenuous activity. However, reviewers flagged its 1.3kg weight as heavy for a 24-liter capacity bag, and Roamingthetrails identified that the hip belt zippered pockets are difficult to operate with gloves or in motion. This pack fits hikers carrying dense technical gear who prioritize load distribution over minimalism, but casual commuters should look elsewhere due to its bulk and specialized features.

Strengths
  • — Includes a 2.5L Osprey Hydraulics LT hydration reservoir and integrated rain cover out of the box
  • — Features an adjustable torso harness system with up to 4 inches (10.2 cm) of range for customized fit
  • — Utilizes a ventilated AirSpeed tensioned mesh back panel that separates the pack from the wearer's back
Watch-outs
  • — Weighs 1.3kg (46oz), which reviewers noted is heavier than expected for a 24-liter daypack
  • — Lacks an integrated safety whistle and is not compatible with twin ice axes
  • — Hip belt zippered pockets can be difficult to operate while wearing gloves or in motion
Osprey Skarab 18
Ranked #4 in Best Hydration Packs
Osprey Skarab 18
1 source$159.99as of Oct 17

OutdoorGearLab found that the Osprey Skarab 18 includes a high-quality 2.5-liter HydraPak hydration system paired with an efficient bite valve and magnetic hose attachment point, delivering water with comfort during active use. The pack offers ample storage for day trips but suffers from limited internal organization, consisting mainly of a single large compartment without dedicated pockets for gear segmentation. Reviewers also noted that the short hanging clip in the hydration sleeve makes removing and replacing the bladder cumbersome when refilling at trailheads or sinks. This versatile 18-liter capacity suits hikers seeking an all-around daypack with sustainable materials, while those prioritizing easy maintenance or extensive internal organization should look elsewhere.

Strengths
  • — Includes a high-quality 2.5-liter HydraPak hydration system with an efficient bite valve and magnetic hose attachment point.
  • — Offers a large 18-liter storage volume capable of carrying extra layers, shoes, or lunch items for day use.
  • — Constructed from sustainable bluesign-approved recycled high tenacity nylon materials.
Watch-outs
  • — Provides limited internal organization, consisting mainly of a single large compartment without dedicated pockets for gear segmentation.
  • — The hydration sleeve uses a short hanging clip that reviewers found difficult to use when removing and replacing the bladder.

How they stack up

Osprey Manta 24

It includes a rain cover out of the box, unlike the Osprey Skimmer 16 which omits one entirely, though it weighs heavier at 46oz compared to the USWE Rush 8L's 318 grams.

Osprey Skarab 18

The Osprey Skarab 18 provides a large 18-liter volume but suffers from limited internal organization compared to the CamelBak Rim's multiple zippered compartments. Its hydration sleeve uses a short hanging clip that reviewers found difficult to use, whereas the USWE Rush 8L includes a bladder with a wide-mouth opening for easier filling and cleaning.

Specs side-by-side

SpecOsprey Manta 24Osprey Skarab 18
Capacity24 L18 L
Hydration Reservoir2.5L Hydraulics LT included2.5 L
Weight1.3kg / 46oz25.5 oz
Material100% recycled 210D nylonbluesign-approved recycled nylon
Back PanelAirspeed with LightWire frameAirScape foam suspension and backpanel
Fabric100% recycled 210D high-tenacity nylon210D Nylon Double Diamond Ripstop
Torso FitOne size fits mostOne size fits most
Frame TypeInternal LightWire frameInternal Delrin U-frame
Hip BeltEVA foam-padded hipbeltRemovable 3/4" webbing
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