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Manta 24 / Mira 24

The Osprey Manta 24 and women's-specific Mira 24 occupy a distinct niche in the daypack market, pairing the structural suspension of a multi-day expedition pack with the moderate cargo volume of a day-tripper. Designed for long, demanding outings where gear weight and heat buildup become noticeable factors, this pack favors supportive carrying comfort and ventilation over minimalist weight savings. At the core of the pack is Osprey's tensioned AirSpeed backpanel, which lifts the load off the we

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Topic summary

The Osprey Manta 24 and women's-specific Mira 24 occupy a distinct niche in the daypack market, pairing the structural suspension of a multi-day expedition pack with the moderate cargo volume of a day-tripper. Designed for long, demanding outings where gear weight and heat buildup become noticeable factors, this pack favors supportive carrying comfort and ventilation over minimalist weight savings. At the core of the pack is Osprey's tensioned AirSpeed backpanel, which lifts the load off the we

Key takeaways

  • Tensioned AirSpeed ventilated mesh backpanel
  • Adjustable torso harness on a LightWire steel frame
  • Included 2.5L Hydraulics LT reservoir with magnetic hose clip
  • Integrated, stowable raincover in dedicated base pocket
  • Stow-on-the-Go trekking pole attachment system
  • Dual zippered hipbelt pockets and front stretch stash pocket

Intended uses

  • Hot-weather day hiking
  • Technical desert trekking
  • Heavy-load day hikes
  • Rugged mountain scrambles

Verification notes

Evidence: expert reviewed. Last verified October 16, 2026.

Catalog photo
Real product photography — no AI-generated or placeholder imagery.

Editorial take

The Manta 24 (and women's-specific Mira 24) is built for hikers who prioritize load-bearing comfort and back ventilation over ultralight minimalism. Built around an internal LightWire frame and a suspended AirSpeed mesh backpanel, it carries more like a trimmed-down backpacking rig than a standard daypack. The perimeter frame transfers weight directly to a padded, structured hipbelt, keeping substantial gear and full hydration off your shoulders and spine during long miles under a hot sun.

Durable nylon construction resists abrasion from rock scrambles and dense brush, while the layout leaves little to be desired on trail. It ships with a dedicated 2.5-liter Hydraulics LT reservoir housed in its own zippered compartment, complete with a magnetic sternum-strap bite valve dock. Organization is deliberate and practical: dual zippered hipbelt pockets swallow snacks, a front shove-it pocket handles wet shells, and an integrated raincover stows in the base until weather rolls in.

That comprehensive feature set and rigid frame do come with a noticeable weight penalty. Tipping the scales around three pounds empty, this pack sits well above frameless competitors and minimalist daypacks. However, when hauling full water, layers, and camera gear over 15 miles of rugged elevation, the structural support and torso adjustability make that base weight worthwhile. It represents a reliable, premium choice for hikers who value suspension and comfort over gram-counting speed.

Best for

  • Hot-weather day hiking
  • Technical desert trekking
  • Heavy-load day hikes
  • Rugged mountain scrambles

Not ideal for

  • Noticeably heavy for a 24-liter daypack, weighing nearly three pounds empty
  • Rigid perimeter frame limits how tightly the pack can be compressed or packed flat
  • Magnetic bite valve clip can get knocked free in dense brush
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Verified specifications

Key features
  • Tensioned AirSpeed ventilated mesh backpanel
  • Adjustable torso harness on a LightWire steel frame
  • Included 2.5L Hydraulics LT reservoir with magnetic hose clip
  • Integrated, stowable raincover in dedicated base pocket
  • Stow-on-the-Go trekking pole attachment system
  • Dual zippered hipbelt pockets and front stretch stash pocket

Warranty and repair information: contact Osprey directly for the most current terms. Osprey support

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Data sources & verification

  • Manufacturer: Osprey
  • Last verified: 10/16/2026