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Mountain Hardwear Lamina Z Flame 22°F

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The Mountain Hardwear Lamina Z Flame 22° (fahrenheit) is a warm, affordable and water-repellent synthetic sleeping bag, which utilises Mountain Hardwear's unique Lamina construction for impressive warmth to weight ratios.

This synthetic sleeping bag uses Thermal.Q insulation, which is both compressible and durable. Welded Lamina construction enhances loft and eliminates cold spots. The comfort mummy fit of this 22°F/-6°C -rated bag offers room to move while remaining thermally efficient. It also features a draft collar and our exclusive welded Lamina™ construction that maximises loft and eliminates cold spots caused by traditional stitching. Soft polyester lining wicks away moisture and lightweight nylon shell repels water. Full-length zipper has double sliders for ventilation.

What is Lamina Technology?
Maximising and maintaining loft is the true measure of synthetic sleeping bag design. Over time, all synthetic bags gradually lose loft due to stuff sack compression and general wear and tear. Designing a synthetic sleeping bag that would retain loft – and warmth – over the long haul became Mountain Hardwear's engineering challenge, and their welded Lamina construction was born.

Why Weld?
Welding stabilises fill without sewing through the bag and pinching the insulation, thereby maximising warmth and loft. Offset welds on the top and bottom of the bag increase fill stability.

Comfort Rating: 22ºF / -6ºC


  • Proprietary, welded Lamina™ construction enhances loft and eliminates cold spots
  • Zoned insulation maximizes warmth where it's needed most
  • Thermal Q® insulation has outstanding compressibility and maintains excellent loft
  • Comfort mummy cut efficiently maximizes weight without constriction
  • Ergonomic draft collar blocks the escape of heated air from inside the bag
  • Full length #5 zipper with double sliders for versatile ventilation
  • Comfort footbox follows natural foot position for maximum warmth and comfort
  • Face gasket and tailored hood comfortably block drafts at the hood opening and seal in warmth
  • Durable, lightweight nylon shell with DWR treatment repels water
  • Soft polyester lining wicks away moisture
  • Zippered pocket at shoulder for storage
  • Nylon compression stuff sack and mesh storage bag included


  • Colour: Green
  • Compressed Size: 18 cm x 39 cm
  • Max height of user: 183cm | Inside Length Regular: 78 in / 198 cm
  • Manufacturer: Mountain Hardwear
  • Weight: 1.22kg

Customer Reviews

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Newtownabbey, Northern Ireland

Great service

I haven’t used the bag yet but I am very confident it will suit my needs perfectly. I actually spent nearly a year searching for the right bag. I needed two that will zip together and that will perform well in typical British and Irish conditions. Down became out of the question because of the risk of damp. So the bag was chosen a while ago and I just had to wait until I had the cash. I nearly bought from a different online store for the same price but they wanted £15 for dpd delivery. Shopped around again and realised rock and run didn’t charge. Ordered the bags on Monday night and they arrived on Wednesday. DPD delivery, the same as the other online store. This is great to see because it costs exactly the same to send items, be it by Royal Mail, DPD or whatever to NI as it does to mainland places. Other online retailers should take note of rock runs delivery service. Well done for a great item at a great price with free delivery to Northern Ireland.

andrew I.
United Kingdom

Lamina Z Flame 22Deg F

Great Bag . really compressible to travel and comfortable at - 6 deg C in Sikkim , to sleep in . All good.

Alex G.
Hong Kong

Great value synthetic bag

Nice features and details. Draft collar works well. Took it down to 0°C & -2°C nice and warm in this range. Relatively light for a synthetic bag. Didn't get it wet so unsure of performance if wet.

Robert H.
United Kingdom

Well made, packs small, but I doubt I would use it at 22F (-5.5C)

I bought this because I was taking 20 Scouts camping in September and another camp in November, where I know it is going to be cold. My trusty 20 year old bag has seen better days but I have never been cold in it - but time for a new one. Given the write up on this bag I thought I would be too hot at the rather balmy 9C we had during the night. But no I actually had to put on a layer of clothes because I woke up cold - and I was sleeping on a very thick inflatable mat. On the positive side, it packs down really small, is very light and seems robustly constructed. Which leads me to conclude I could have paid less for an equally warm bag hence only 3 stars.

Toby E.
United Kingdom

Perfect sleeping bag

All around great bag. Warm and comfy to allow temperature, and equally good in summer as a quilt. Packs down nicely with compression sack and has a larger storage sack for at home. Great purchase. Also fast delivery and good service from Rock and Run.


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