Murmur 36 Hyperlight Backpack

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.



Backpack Sizing
  • $22.00
  • $39.00
  • $5.99
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Product Description

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.
  • 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 the pad to be pulled out during rest breaks.
  • Hydration tube port and guide straps.
  • Removable/adjustable sternum strap.

Average Weight

Pack body 8.1 oz / 229 g

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)