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  • Performance mummy cut is snug, reducing girth, weight and bulk while maximizing thermal efficiency
  • Lamina construction welds the Thermal.Q insulation to the shell and lining, eliminating the cold spots caused by traditional stitching
  • Thermal.Q insulation has outstanding compressibility and maintains excellent loft and warmth, even when damp
  • Ergonomic draft collar blocks the escape of heated air from inside the bag
  • Face gasket and tailored hood comfortably block drafts at the hood opening and seal in warmth
  • Comfort footbox follows natural foot position for maximum warmth and comfort
  • Single #5 half-length center zip with dual sliders minimizes weight and allows for ventilation
  • Ultralight shell is soft and highly wind-resistant
  • Silnylon compression stuff sack and mesh storage sack included


View all Mountain Hardwear Men's Sleeping Bags

REI membership


Best Use Backpacking
EN Lower Limit 21 degrees Fahrenheit
EN Comfort 32 degrees Fahrenheit
Temperature Rating (F) 21 degrees Fahrenheit
Temperature Rating (C) -6 degrees Celsius
Long Left
2 lb. 15 oz.
Regular Left
2 lb. 12 oz.
Shell Tactel nylon
Zipper Location Front
Insulation Type Synthetic
Fill Thermal.Q synthetic fibers
Fill Weight
Long Left
2 lb. 0.2 oz.
Regular Left
1 lb. 13 oz.
Lining 20-denier taffeta
Sleeping Bag Shape Mummy
Fits Up To (in.)
Long Left
78 inches
Regular Left
72 inches
Shoulder Girth (in.)
Long Left
66 inches
Regular Left
63 inches
Hip Girth (in.)
Long Left
64 inches
Regular Left
58 inches
Stuff Sack Size 7 x 15 inches
Stuff Sack Volume 9.5 liters
Compressed Volume Unavailable
Gender Unisex
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How small does this bag compress down to in the included stuff sack?

Asked by: carlcward
The compressed volume is newer standard for sleeping bags. Currently Mountain Hardwear does not provide the compressed volume for the HyperLamina Flame. Based on sleeping bags with a similar temperature rating and insulation, 7 liters of compressed volume would be a good estimate.
Answered by: REIservice
Date published: 2017-01-23

does this sleeping bag have zippers by the feet for ventilation?

Asked by: TaliHiker
The HyperLamina Flame does not have any zippers at the footbox. It has just one half zip at the center of the bag.
Answered by: REIservice
Date published: 2017-01-23

What is the major difference between this bag and the lamina z flame? Trying to decide between the two and they seem very similar aside from price.

Asked by: Rsurles
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