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Why carry more sleeping bag than you need?

Minimize your load on a summer backpacking expedition with the Mountain Hardwear Lamina 45-Degree Sleeping Bag. This lightweight bag features a comfortable mummy cut that maximizes warmth without feeling overly constricting and Lamina construction to enhance insulation loft and eliminate cold spots. The shell’s DWR finish repels water, while the Thermic Micro retains warmth even if it gets slightly wet.
  • An EN lower-limit rating of 41 degrees F means that this bag is best used for three-season camping at lower elevations
  • Thermic Micro synthetic fill traps in warmth, keeps you warm even if it gets slightly wet, and compresses well for easy packing
  • Lamina construction means that the junction of baffles are welded, not sewn, for maximum loft and heat retention
  • Durable, lightweight nylon shell features a DWR treatment to repel frost, condensation, and dew
  • Soft polyester lining wicks away moisture
  • Face gasket and hood block drafts at the hood opening and seal in body heat
  • Full-length, two-way #8 zippers extend all the way to the footbox to allow maximum ventilation and the option to use the bag as a comforter or zip it together with another bag
  • Comfort footbox follows your foot's natural contours to reduce constriction
  • Comfort mummy cut efficiently maximizes warmth without being overly constrictive
  • Internal zippered pocket near shoulder provides storage for your keys, watch, or phone
  • Included compression stuff sack and mesh storage bag make storage and transport a cinch

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Mountain Hardwear Lamina 45 Sleeping Bag: 45 Degree Synthetic

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Here's what others have to say...

5 5

Just got it...

Got mine in the mail and can't wait to try it!!!!

5 5

Packs unbelievably small

I am 6'4" and 260 lbs and I bought the long version of the bag. The bag is large enough around the hips and shoulders to even allow a little wiggle room. For a bag to fit my large body and to pack down that small is awesome. Love it!

5 5


Just terrific. Light, packs tiny. True to temp rating.

Summer bag for backpacking, climbing, bike touring or river trips.

Rated four season for couch surfing.

Might be nice as part of an alpine UL emergency kit to augment a bivy sack (if yer warm-blooded).

Full zipper, synthetic for wet conditions, comes with a nice compression sack and surprisingly swanky storage bag.


Website shows regular and long lengths but...

Posted on

Website shows regular and long lengths but dropdown gives short and long as options. Is short the regular size?

Responded on

BJ, I think you might want to talk to a gearhead via "Chat Now" because MH does make this in short, regular and long versions. The short only covers up to 5'6" in length. Usually on the descriptions the Regular has no other designation next to the size.

5 5

M.H. Lamina 45

Wow.. how small can a sleeping bag get? Not much smaller than this one. Not only is it small, but all of the Lamina bags come with (what would be the equivalent of) a $20.00 compression stuff sac. This thing compresses TINY. But even more importantly, the bag is comfy and accurate to its rating. I always wear a light base layer when in a bag (to protect from sweat and grease) and this bag kept me warm in an Adirondack fall night (40 degrees). The Lamina cut is mummy but with some wiggle room. The 45 has a small draft tube along the zipper, but no draft collar. The hood will cinch closed if its necessary to conserve heat. It seems very thin, but the slight layer of insulation is enough for summer backpacking. I own several Lamina bags and I swear by them. Great product.