Mountain Hardwear  Lamina Z Flame Sleeping Bag

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A great choice for backpacking, this spacious 3-season bag compresses small and strategically places insulation to concentrate warmth where you need it most—around your core and your feet.


  • Unique welded construction reduces weight and bulk, maximizes insulation loft, eliminates cold spots and thermally maps insulation to areas where warmth is needed most
  • Thermal.Q insulation has outstanding compressibility, maintains excellent loft and continues to insulate even when damp
  • Comfort mummy fit offers room to move while remaining thermally efficient
  • Ergonomic draft collar and tailored hood with face gasket comfortably block drafts and seal in warmth
  • Comfort footbox follows natural foot position for maximum warmth and comfort
  • Soft polyester lining wicks away moisture and lightweight nylon shell has a durable water repellent finish to ward off moisture
  • Full-length #5 zipper with double sliders for versatile ventilation
  • Zippered pocket at shoulder
  • Nylon compression stuff sack and mesh storage bag included
  • 22°F EN (European Norm) lower-limit rating is suitable for 3-season use
Temperature ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth, since many different factors contribute to your comfort while you sleep. Backpacking bags are typically rated for temperature according to an independent testing protocol—currently International Organization for Standardization (ISO) 23537, though some older items followed European Norm (EN) 13537. Testing is based on a person wearing one base layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38.

Each bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Some brands determine their own temperature rating by aligning to the Comfort rating for women’s bags, to the Lower Limit rating for men’s bags, or somewhere in the middle for nongendered bags.
View all Mountain Hardwear Backpacking Sleeping Bags

Technical Specs

Item #880097
Best Use


Tested Lower Limit

22 degrees (F) - EN

Tested Comfort

32 degrees (F) - EN

Temperature Rating (F)

22 degrees (F)

Temperature Rating (C)

-6 degrees (C)


30-denier ripstop nylon

Zipper Location


Insulation Type



Thermal.Q synthetic fibers

Fill Weight

1 lb. 14 oz.


40-denier polyester taffeta

Sleeping Bag Shape


Stuff Sack Size

7 x 15 inches



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