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Peak 42S/45
Best high performance pack for dedicated alpine mountaineers and ski tourers.
Designed for demanding alpine environments, this pack excels in gear-heavy backcountry pursuits like ski mountaineering and snowshoeing. It features a specialized suspension system that utilizes wool fleece for temperature regulation and comfort, ensuring a stable carry during long ascents. The design prioritizes accessibility with both top and front panel entry, allowing for quick retrieval of gear. A dedicated safety compartment keeps emergency equipment readily available, while integrated attachments for ropes, crampons, and ice axes provide versatile storage options for technical equipment. Built with recycled materials, it balances durability with a commitment to sustainable manufacturing practices.
$259.00
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Owner Satisfaction
4.6
/ 5
Category Rank
2088
/ 15434
#2088 in Backpacks
Price vs Category Average
+137%
Above average
Capacity
45
/ L
Who it's for
- High-output climbers seeking superior moisture management and comfort
- Mountaineers requiring gear that survives harsh, abrasive alpine environments
- Organized adventurers who prioritize fast access to their technical gear
Who should skip it
- Ultralight enthusiasts prioritizing weight savings over comfort and features
- Casual hikers looking for a simple, streamlined storage solution
- Budget-conscious shoppers seeking a basic, entry-level mountaineering pack
Performance breakdown
Technical Gear Organization
Dedicated attachments for axes and ropes make technical transitions seamless.
Suspension Comfort
Swisswool fleece backing manages moisture and heat during high-output ascents.
Accessibility
Dual-access design ensures you never have to dump your pack.
Safety Integration
The dedicated emergency compartment provides rapid, reliable access to avalanche tools.
Durability
Rugged 420D nylon construction withstands harsh alpine abrasion and heavy loads.
Sustainability
Thoughtful use of recycled materials balances performance with environmental responsibility.
Key Specs
Capacity
45L
Material
420D nylon, SWISSWOOL wool fleece lining
Weight
3.48 lbs
Water Resistant
Yes
Hydration Compatible
Yes
Closure Type
Zipper
Number of External Pockets
2
Sternum Strap
Yes
Know before you buy
The wool fleece lining provides a noticeably softer, more breathable contact point compared to standard foam back panels. It excels at moisture management, keeping your back drier and more comfortable during high-output ascents.
Yes, the pack features both top and front panel access. The front zipper is particularly useful for grabbing items buried at the bottom of the main compartment without having to dump everything out.
It is built specifically for technical pursuits. It includes dedicated, secure attachment points for ice axes, crampons, and climbing ropes, making it a reliable choice for ski mountaineering and alpine climbing.
Yes, the dedicated safety compartment is designed to house your avalanche shovel and probe securely. It keeps this emergency gear separate from your main supplies so you can access it instantly in a critical situation.
Yes, the Peak 42S/45 is hydration compatible, allowing you to easily integrate a reservoir for hands-free drinking on the move.
The pack is constructed from 420D nylon, which is a robust, abrasion-resistant fabric designed to withstand the rigors of alpine environments. Using recycled materials does not compromise the structural integrity or longevity of the pack.
Still have a question?
Ask Hayley anything about this product before you decide.