Peak 45 / Peak 42 S Backpack
Best high performance pack for dedicated alpine mountaineers and ski tourers.
Designed for demanding alpine environments, this versatile pack serves as a reliable companion for long-haul backcountry adventures. It features a sophisticated suspension system that utilizes wool fleece contact points for superior temperature regulation and comfort, while integrated metal struts ensure even load distribution during heavy carries. The design prioritizes accessibility, offering both top and front panel entry to the main compartment, alongside a dedicated safety section for emergency gear. With integrated attachments for ropes, crampons, and skis, it provides essential functionality for winter enthusiasts. Sustainable construction using recycled materials makes this a responsible choice for those who spend their time in the mountains.
$280.00
More Peak Options
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Owner Satisfaction
4.6
/ 5
Category Rank
2088
/ 15434
#2088 in Backpacks
Price vs Category Average
+157%
Above average
Capacity
45
/ Liters
Who it's for
- High-intensity mountaineers seeking superior sweat management and comfort
- Rugged alpinists requiring gear that survives harsh mountain environments
- Technical climbers needing organized transport for specialized gear
Who should skip it
- Ounce-counting hikers prioritizing the lightest possible base weight
- Multi-day trekkers operating in consistently wet or humid climates
- Casual recreationalists looking for a simple, streamlined storage solution
Performance breakdown
Load Distribution
Metal struts effectively transfer heavy gear weight to the hips.
Climate Control
Wool fleece contact points significantly reduce sweat buildup during strenuous climbs.
Gear Accessibility
Dual entry points and dedicated safety pockets streamline emergency transitions.
Technical Versatility
Integrated attachment points handle skis, ropes, and crampons with ease.
Durability
Rugged 420D nylon construction withstands abrasive alpine rock and ice.
Sustainability
High percentage of recycled materials sets a benchmark for responsible manufacturing.
Key Specs
Capacity
45 Liters
Material
420D Nylon
Weight
3.48 lbs
Water Resistant
Yes
Hydration Compatible
Yes
Sternum Strap
Yes
Hip Belt
Yes
Closure Type
Zipper
Know before you buy
The primary difference is the torso length. The 'S' in Peak 42 S stands for 'Short,' meaning it is specifically designed for users with shorter back lengths, while the standard Peak 45 is built for longer torsos.
The SWISSWOOL back panel is designed to regulate temperature and manage moisture effectively. While it excels at wicking sweat and keeping you comfortable during high-output ascents, it is not waterproof, so you should rely on the pack's durable nylon exterior to protect your gear from snow and rain.
With a 45-liter capacity, it is well-suited for long day tours or lightweight overnight missions. However, if you are planning on carrying heavy camping gear or multi-day supplies, you may find the space tight compared to dedicated expedition packs.
Yes, the pack features both top and front panel access. The front zipper allows you to open the main compartment like a suitcase, which is particularly helpful for grabbing layers or gear buried at the bottom without unpacking everything.
Yes, it includes a separate, dedicated safety compartment designed for quick access to your shovel, probe, and other emergency equipment, ensuring you can reach them immediately in a critical situation.
Yes, the Peak 45 is hydration compatible. It includes an internal sleeve and routing for a hydration tube, allowing you to drink easily while on the move.
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Ask Hayley anything about this product before you decide.