SKU: 67322526273

Mountainsmith Mayhem 45

Sale price$145.57 Regular price$161.74
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Ships within 48 hours · Estimated delivery Aug 4 - Aug 9

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Description

Mountainsmith Mayhem 45Why compromise when you don't have to? The Mayhem 45 is ultralight, ultra durable, and ultra comfortable. Built with Spectra Fiber, the pack offers a top tier strength to weight ratio. Used by military and law enforcement, Spectra Fiber is an ultra high molecular weight polyethylene known for its lightweight strength and abrasion resistance properties. In the Mayhem 45, this means more efficient pack carry, more mileage, and a lifetime of adventures.

Why compromise when you don't have to? The Mayhem 45 is ultralight, ultra-durable, and ultra-comfortable. Built with Spectra® Fiber, the pack offers a top tier strength-to-weight ratio. Used by military and law enforcement, Spectra® Fiber is an ultra-high-molecular-weight polyethylene known for its lightweight strength and abrasion resistance properties. In the Mayhem 45, this means more efficient pack carry, more mileage, and a lifetime of adventures. Less pack weight also means more room for the essentials - like melted chocolate bars and squished PB&Js.

At 45 litres, the Mayhem 45 is designed for one-to-three-night backpacking trips, backcountry huts trips, gear heavy days at the crag, and adventure travel. The hybrid top and panel opening offers easy access to the front of the pack, a must-have for tight environments and organized packing. Toss the Mayhem on your back and the hex-ridged EVA back panel padding allows for omni-directional airflow while the sock-style shoulder strap construction prevents the straps from digging into your body. The Interfaced Waistbelt system is designed and patterned to flow into the back panel allowing for a lightweight but intimate suspension fit and high levels of stability and comfort.

  • Front panel expansion pocket with daisy chain attachment loops and built in haul handle
  • Dual density EVA/PU shoulder straps with load lifter adjustment
  • Forward pull waistbelt with side adjustment webbing Ventilated waistbelt padding
  • Stretch mesh waistbelt pockets
  • Top lid zippered compartment with secondary pocket underneath
  • Side panel mesh bottle pockets with Over/Under strap pass thru
  • Dual tool / trekking pole carry with elastic pole tip loops
  • Ice & mixed tool lower panel pass-thru sleeves

Material:

  • 210d HT Nylon w/ 200d SPECTRA® R/S
  • 210d Nylon Embossed Liner
  • 2mm Spring Steel

Volume: 44L

Dimensions:

  • Bag Dimensions: 26" x 11.5" x 8.25" (H x W x D)
  • Torso size: 16" - 20"
  • Waistbelt: 28" - 48"

Weight: 1.33 kg

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 67322526273

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4.1 ★★★★★
Based on 19 reviews
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Verified Purchase
Ryan T
Cuba, US
★★★★★ 1
DO NOT USE THE PROVIDED SCREWS
Color: Black
The screws they include are so cheap and they start to strip halfway in (even with pilot holes). The holders themselves are fine but now now the screws can go in or get out so it's either destroy the product or live with it. I used a quality screw on the one side and it worked just fine. Poor quality and not very thoughtful. If you buy, get your own screws.
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Reviewed in the United States on February 23, 2026
M
Verified Purchase
Mark N Aglanao
Natrona Heights, US
★★★★★ 5
Solid quality build
Style: Deluxe
Quality build. Solid frame and easy instructions for mounting. Would buy again.
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Reviewed in the United States on March 19, 2026
A
Verified Purchase
Ashley
Port Orchard, US
★★★★★ 5
Great for Docking Stations & Chargers — Not Just Laptops
Style: Deluxe
I didn’t buy this for a laptop at all—I specifically purchased it to mount my docking station and charger under my desk, and it works perfectly for that. The size is great, the shelf is sturdy, and it keeps everything neatly tucked away instead of cluttering up my workspace. If you’re looking for an under-desk solution for a docking station, charger, or other accessories (even if you don’t plan to mount a laptop), this is absolutely worth it. It cleaned up my whole setup. Highly recommend!
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Reviewed in the United States on January 19, 2026
S
Verified Purchase
Sue Weddell
Omaha, US
★★★★★ 4
VI+AL Under Desk Laptop Mount
Style: Deluxe
Works great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 14, 2026
C
Verified Purchase
Chadnic
San Leandro, US
★★★★★ 5
Didn't use for laptop but....
Style: Deluxe
Fantastic for my desk. I ended up using this to mount a Topping DAC under my desk and I used the side cubby to put my Google Nest Mini and Broadlink RF device. Got all that off my desk and everything tucked away just perfect. I haven't used the headphone mount yet, but I plan to use that to, low and behold, hang headphones! These are easy as heck to install and strong enough to hold up anything that will fit in the space for the most part.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 13, 2026

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