Outdoor Vitals CS40 Backpack
Best lightweight pack for hikers seeking superior load carry comfort.
This is the rare ultralight pack that actually manages heavy loads comfortably, thanks to a rigid carbon fiber frame that does the heavy lifting for you. You sacrifice a bit of organizational complexity for a streamlined, waterproof build, but the result is a pack that feels like an extension of your body on long treks.
$368.00
at
Adventure Alan
More CS40 options
Who it's for
- Ultralight backpackers seeking heavy-load support without the extra bulk
- Long-distance hikers requiring a rugged, weather-resistant gear solution
- Active trekkers prioritizing freedom of movement on technical terrain
Who should skip it
- Hikers with unique body proportions requiring adjustable torso lengths
- Budget-conscious campers looking for a more affordable entry-level option
- Traditional backpackers who prefer extensive organizational compartments and lids
Performance breakdown
Load Distribution
Carbon fiber frame effectively shifts heavy loads directly to the hips.
Weight Efficiency
Ultralight construction minimizes fatigue without sacrificing essential structural integrity.
Weather Protection
Advanced UltraWeave fabric keeps gear dry during unexpected mountain downpours.
Ventilation Performance
Aerated foam back panel significantly reduces sweat buildup on long ascents.
Accessibility
Strategic hip and shoulder pockets keep trail essentials within immediate reach.
Volume Versatility
Roll-top closure adapts seamlessly to varying gear loads and trip lengths.
Key Specs
Weight
1.69 lbs
Material
Challenge UltraWeave 200
Capacity
53 Liters
Frame
Internal Carbon Fiber Stays
Water Resistant
Yes
Closure Type
Roll Top
Intended Use
Hiking
Sternum Strap
Yes
Hip Belt
Yes
Number of External Pockets
6
Know before you buy
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