Home Shop All Gear Murmur 36 Hyperlight Backpack

Murmur 36 Hyperlight Backpack

7.9 ounces of barely-there badassery. If you're not sure if it’s the right pack for you, it probably isn’t. In fact, we recommend that you don't buy this pack.

Gear Notes

Made of 30 & 70 denier fabrics, this is the impossibly light pack for that solo mission up Exum Ridge or a weekend summit bid for Mt. Humphreys in the Sierra. If you can weigh in your gear at around 15 pounds or less, this is your pack. 


  • Roll-top closure buckles for streamlined shape, but can clip together in ‘dry bag’ style to use extension collar.
  • Removable padded waist belt with integrated pockets, adjustable to two torso heights.
  • Unisex (Men's and Women's) shoulder straps and waist belt constructed with low profile, but super comfortable, highly breathable wall mesh.
  • Ice axe holder with removable Velcro loops to secure items to pack.
  • Large mesh pocket for drying items, or quick storage on trail without opening pack.
  • Stretchy back panels hold included sit pad, or a thin sleeping pad, saving inside pack space, and allowing pad to be pulled out during rest breaks.
  • Hydration tube port and guide straps.
  • Removable/adjustable sternum strap.


One Size (16" - 24" torso)
Generally fits people 5'4"-6'4"

Circumference for Waist Belt 28" - 48"


Average Weight

Pack body 8.1 oz / 229 g (down from 8.5 oz)

Fast belt 2.3 oz / 66 g

Sitlight Pad 2.3 oz / 66 g

Total 12.7 oz / 361 g


Total 36 L

Main Pack Body to extension collar seam 28 L

Exterior Pockets 8 L

Max Carry Capacity 20 lbs

For Comfort 15 lbs


Height 21” / 53.3 cm

Width 10.5” / 26.7 cm

Depth 6 “ / 15.2 cm

Extension Collar adds another 9" / 22.8 cm of height


30d Cordura & 70d Robic Nylon Ultralight micro mesh

Lightweight and incredibly water-resistant fabric rated to 3000 mm H2O (Pack not sewn to be waterproof)

Customer Reviews

Based on 75 reviews Write a review