The Mountainsmith Mayhem 30 is a 29-liter pack with an internal frame and contact-padded back system, built from 210D HT nylon reinforced with Spectra fiber for added tear resistance without the bulk of heavier fabrics. Two ice axe loops and a versatile intended-use list — multi-day trekking, ski touring, and travel — point to a pack meant for shoulder-season and mixed-activity trips rather than pure summer hiking.
Access to the main compartment is via top lid or front panel J-zip, with a lid pocket, one front pocket, two side pockets, and side-only compression straps to cinch down a partial load. The padded, pocketed hip belt, chest strap, and load lifters make up a full carry system despite the pack's relatively compact size.
At 1200 grams and roughly 41.4 grams per liter, it carries more structure per liter than some larger packs in this lineup — a reasonable trade for a 30-liter pack expected to work across trekking, ski touring, and travel rather than one narrow use case.
Specifications
Color
Black
Total Volume
29 l (7.66 gal)
Weight
1200 g (2.65 lb)
Back System Type
Contact (padded)
Frame Type
Internal frame
Padded Hip Belt
✓
Chest Strap
✓
Load Lifter Straps
✓
Gender-Specific Fit
Unisex
Main Fabric
210D HT Nylon with Spectra Fiber
Fabric Type
Nylon
Main Compartment Access
Top lid, Front panel (J-zip)
Lid Pocket
✓
Front Pocket Count
1
Side Pocket Count
2
Ice Axe Loops
2
Compression Straps
Side only
Hydration Compatible
✓
Intended Use
Multi-day trekking, Ski touring, Travel
Volume/Weight Ratio f(x)
24.2 l/kg
Weight per Liter f(x)
41.4 g/l
Pack Style
Classic hiking pack
Hip Belt Type
Padded with pockets
Where to buy
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Category context Hiking Backpacks (407 products)
Weight
Expedition weight· mainstream zone 148–856 g· ranked 47 of 54
1200 g
33 g 6050 g
Total volume
Compact· mainstream zone 38–60 l· ranked 355 of 407