Deuter
Aircontact Ultra 40+5
Best lightweight pack for long-distance thru-hikers seeking comfort.
Embark on your next thru-hiking adventure with the Deuter Aircontact Ultra 40+5 backpack. Engineered for an exceptional comfort-to-weight ratio, this pack is ideal for long-distance treks. Its Aircontact back system ensures superior ventilation, keeping you cool and comfortable mile after mile. The lightweight design features a removable lid and compression straps for customizable weight reduction. Crafted from durable ripstop material, it's built to withstand rigorous use, while ergonomic hip fins and adjustable straps provide a snug, supportive fit for efficient load distribution.
$240.00
Owner Satisfaction
4.7
/ 5
Category Rank
137
/ 13466
#137 in Backpacks
Price vs Category Average
+126%
Above average
Capacity
405
/ + Liters
Who it's for
- Long-distance hikers prioritizing speed and reduced fatigue
- Active trekkers hiking in hot or humid climates
- Backpackers needing stable weight distribution for moderate loads
Who should skip it
- Bushwhackers navigating dense brush or rugged, abrasive terrain
- Organizers requiring extensive pockets and heavy-duty gear features
- Expedition hikers carrying heavy gear exceeding thirty pounds
Performance breakdown
Weight Efficiency
Engineered to minimize pack weight without sacrificing essential structural integrity.
Ventilation Performance
The Aircontact system keeps your back remarkably dry during high-exertion climbs.
Load Distribution
Ergonomic hip fins effectively transfer weight to keep your stride stable.
Durability
Ripstop construction handles abrasive trail conditions with impressive resilience.
Customization
Removable components allow you to strip the pack for ultralight missions.
Sustainability
Industry-leading certifications ensure a minimal environmental footprint for every mile.
Key Specs
Capacity
40+5 Liters
Material
Ripstop
Frame Type
Internal Frame
Back System
Aircontact System
Closure Type
Roll Top
Access Type
Top Load
Hydration Reservoir Compatible
True
Hip Belt Included
True
Features
- Outstanding comfort-to-weight ratio
- Superior ventilation with Aircontact back system
- Removable lid for weight reduction
- Adjustable fit for personalized comfort
- Durable ripstop construction
- Versatile storage options
- Integrated safety features
- Hydration system compatible
What customers say
The Aircontact Ultra 40+5 successfully delivers on its promise of ultralight performance without sacrificing comfort, a balance customers truly appreciate. Reviewers consistently highlight the innovative Aircontact back system, noting that even when fully loaded, the pack feels surprisingly manageable. The quality of the materials suggests excellent long term reliability, positioning this pack as a premium investment that genuinely enhances the hiking experience.
Know before you buy
The 40+5 designation indicates that the main compartment holds 40 liters, with an additional 5 liters of expandable storage available via the roll-top closure. This gives you extra flexibility for longer trips where you might need to pack a bit more gear.
Yes, the Aircontact system is specifically designed to promote airflow between your back and the pack. By using breathable materials and a specialized structure, it helps reduce heat buildup and keeps you cooler during high-exertion treks.
Absolutely. The lid is fully removable, allowing you to shed weight when you don't need the extra pocket space. It is a great feature for thru-hikers looking to streamline their setup for lighter days.
Yes, the Aircontact Ultra 40+5 is hydration system compatible. It includes an internal sleeve and routing for a hose, making it easy to stay hydrated without stopping to pull out a water bottle.
The pack uses a round profile frame made of permanently elastic spring steel. This provides a lightweight, flexible structure that transfers the load effectively to your hips while maintaining enough give to move naturally with your body on uneven terrain.
The ripstop construction is designed to be highly resistant to tears and abrasions. It strikes a balance between being lightweight enough for long-distance hiking and tough enough to handle the wear and tear of rugged trails.
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Ask Hayley anything about this product before you decide.
Ready to buy?
$240