Gossamer Gear Murmur 36
Ultralight Pack
~$350

Gossamer Gear

Gossamer Gear Murmur 36

At 7.9 oz, or 10.7 oz with the included torso pad, the ALUULA Murmur 36 is one of the lightest 36 L packs made. It is frameless, rated to 20 lb, with a removable FastBelt.

Approx. price
~$350
Capacity
36 L
Weight
0.5 lbs
Best For
Experienced hikers with sub-10 lb base weights
Type
Ultralight Pack
Frame Type
Frameless
Capacity
36 L
Weight
0.5 lbs
Max Recommended Load
20 lbs (15 lbs for comfort)
Torso Fit
One size, 19-21 in
Material
ALUULA Graflyte V52
Back Panel
Frameless with included 3/8 in torso pad
Warranty
One year against manufacturing defects, US purchasers
Raincover Included
No
Fits BV500 Bear Canister
No

Pros

  • ✓7.9 oz for 36 L is a remarkably low weight.
  • ✓ALUULA Graflyte is a laminate rather than a thin coated nylon.
  • ✓The torso pad is included and removable.
  • ✓FastBelt comes off for summit or town use.

Cons

  • ✗Comfort stops around 15 lb.
  • ✗One torso size, 19-21 in.
  • ✗$350 is a lot to pay for a frameless 36 L pack.
  • ✗Often sold out between production runs.
  • ✗Hipbelt pockets only via the belt accessory.
Gossamer Gear Mariposa 60
~$315
Ultralight Pack

The Mariposa 60 is Gossamer Gear's signature pack, famous for its asymmetric pocket layout — one giant over-the-shoulder pocket that holds a tent, plus six more — and a removable back pad that doubles as a camp sit pad. It's the organized person's ultralight.

60 L7 Pockets2.14 lbs

Weight

2.14 lbs

Capacity

60 L

Frame

Internal Frame

Best for: Hikers who want everything reachable without opening the main bag
Gossamer Gear Gorilla 50
~$275
Ultralight Pack

The Gorilla 50 is the Mariposa's smaller, symmetric sibling — 50 liters, under 2 lbs, and the classic 'second pack' people buy once their kit shrinks. It keeps the sit-pad back panel and Robic durability in a cleaner silhouette.

50 L1.99 lbsClassic Second Pack

Weight

1.99 lbs

Capacity

50 L

Frame

Internal Frame

Best for: Dialed three-season kits that no longer need 60 liters
Gossamer Gear Mirage 40
~$450
Ultralight Pack

Gossamer Gear's ALUULA Graflyte flagship, the Mirage 40 was released in December 2025 and trimmed by 0.8 oz in spring 2026. It weighs 18.6 oz on a carbon-fibre X-frame and is rated to 25 lb. Stock sells out between production batches.

40 L1.2 lbsALUULA Graflyte

Weight

1.2 lbs

Capacity

40 L

Frame

Internal Frame

Best for: Gram-counting hikers who want a framed pack under 20 oz
Gossamer Gear Skala 38
~$225
Ultralight Pack

Frameless and roll-top, the Skala 38 dates from March 2025: 38 L (30 L main) and 20.4 oz complete, made up of a 14.5 oz body, a 3.6 oz Fastbelt and a 2.3 oz pad. It is rated to 25 lb.

38 L1.3 lbsRoll-top

Weight

1.3 lbs

Capacity

38 L

Frame

Frameless

Best for: Thru-hikers who like a roll-top and want to shed belt and pad on easy days
Gossamer Gear G4-20 42
~$205
Ultralight Pack

Gossamer Gear's frameless classic is the G4-20: 42 L (30 L main), 24.8 oz in Medium, $205. A removable sit pad gives the back its structure, and the fixed hipbelt has pockets.

42 L1.6 lbs$205

Weight

1.6 lbs

Capacity

42 L

Frame

Frameless

Best for: Budget-minded ultralight hikers who want a frameless pack with real torso sizing
Gossamer Gear Fast Kumo 36
~$190
Ultralight Pack

A vest-style harness and a detachable Fastbelt carrying zip stretch-mesh pockets turn the 36 L Kumo into the Fast Kumo, a fastpacking take on the pack. It weighs 20.7 oz (S/M) or 21.5 oz (M/L) and costs $190.

36 L1.3 lbsVest harness

Weight

1.3 lbs

Capacity

36 L

Frame

Frameless

Best for: Fastpackers and runners covering big days with overnight gear