MountainsmithMayhem 45L Backpack

Carry of lots of gear in a simple design.

Bring the ruckus on your next weekend-long backpacking excursion with the Mountainsmith Mayhem 45 Backpack. Crafted from the insanely durable multi-ripstop Cordura fabric, and with a giant asymmetrical zipper opening, the Mayhem is ideal for everything from gear-intensive day trips to short backpacking escapes. A spring steel frame, PE framesheet, and Anvil Airway EVA support construction delivers a fit and feel that's equal parts comfort and stability, which is only furthered by the adjustable waist belt. This waist belt also allows you to safely stash a smartphone in the built-in pocket. A bevy of pockets ensures you're never short on the gear you need most through your adventure, and generous tool and trekking pole attachment points keep your bigger items close at hand when you need to scramble with your hands free.

  • Cordura construction
  • PE frame sheet
  • Spring steel frame
  • Anvil Airway back construction
  • Ice axe/ trekking pole construction
  • Adjustable waistbelt
  • Multiple pockets
  • Compression straps
  • Reviews
  • Q & A

Mayhem Pack In Zion

  • Familiarity: I've put it through the wringer

Great pack! Used it hiking in Zion over 3 days about 19 miles covered. Carries a load well, could get weight on the belt. Loved the pockets on the belt are good for phone (camera) and snacks! The hydration sleeve held a 3L HydraPak ShapeShift with only a little out over the top but no issues. Really like the material on the inside of the belt and back panel, just soft and comfortable. Also the stretch panel on the outside works great for stashing gloves, hats, guide book. I have also used this cragging with a 60m rope, draws, helmet, harness etc. and on backcountry fishing trips with waders, boots, net etc. Just a great do it all pack!

Mayhem Pack In Zion

Mayhem 45 Backpack

Additional features of the Mayhem series of packs include a front panel mesh storage pocket, left side mesh pocket with pass through compression straps, right side zippered stash pocket, angled water bottle pocket on the right, top lid gear pocket with key fob, forward pull waist belt, ridged EVA back panel padding, smart phone compatible waist belt pocket, and generous tool /trekking pole attachment points. The Mayhem is ideal for organized carry of lots of gear in a simple design.

To bring you peace of mind for your backcountry investment, Mountainsmith offers a lifetime warranty on their products. For a larger everyday carry solution, the Mayhem 45 is the pack for you.

 Mayhem 45 Backpack

Mayhem 45 Backpack

The giant asymmetrical zipper opening to the Mayhem 45 backpack make it convenient for gear intensive day trips to short backpacking escapes. Built with a wire hoop frame to offer rigidity, this bag is a sturdy everyday carry option. Combine that convenience with the use of ultra-durable CORDURA® fabric, and this backpack is going to be one of your favorites for trail and travel.

Mayhem 45 Backpack

Nepali Coast warrior

  • Familiarity: I've put it through the wringer

I have a small frame so this bag's frame was a little too high for me. Coming up steep inclines proved dangerous as I'd have to lean out in order to see where I was going. Looking up was not an option, however that probably means better neck protection if I were to have fallen. This bag had ample room. I did not love the color nor the mesh on straps. I understand this is for wicking sweat however it snagged on most anything. Comfortable around the waist to wear not meant for a breasted woman on top with strap.

Nepali Coast warrior

Twice used great pack!

  • Familiarity: I've used it several times

Used this pack twice so far a 5 mile hike in fishing spot and a full day trad climbing outing. Carried the loads great, plenty of room for a day pack, comfortable and great pockets! I don't hesitate at all to recommend this pack.

Twice used great pack!

MAYHEM