1. Home
  2. Equipment
  3. Sleeping Bags
  4. Camping Sleeping Bags
  5. Lamina™ Z Spark 34°F / 1°C Sleeping Bag
Swipe for more images

Lamina™ Z Spark 34°F / 1°C Sleeping Bag

Summary

Unique Lamina™ construction maximizes the loft of your insulation, eliminates cold spots and thermally maps insulation to areas you need the most warmth. By strategically placing insulation, we are able to concentrate warmth where you need it most – around your core and feet. The comfort mummy fit of this 34°F/1°C -rated bag offers room to move while remaining thermally efficient. It also features our exclusive welded Lamina™ construction that maximizes 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.
$159.00
Style# 1568351 / 1568352
    • 2. Select Bag Length:
    •  
    • REGULAR
    • LONG
      • Sleeping bag size guide Sleeping bag size guide mobile
    • 3. Select Zipper Location:
    •  
    • RH
    • LH
Elevated Rewards members receive free standard ground shipping
Add to Wishlist
Shop our Partners

Features & Specs

  • Weight: - Regular 2 lb 1.9 oz / 960 g; Long 2 lb 5 oz / 1050 g -
  • Good For: - Backpacking / Hiking -

Summary

Unique Lamina™ construction maximizes the loft of your insulation, eliminates cold spots and thermally maps insulation to areas you need the most warmth. By strategically placing insulation, we are able to concentrate warmth where you need it most – around your core and feet. The comfort mummy fit of this 34°F/1°C -rated bag offers room to move while remaining thermally efficient. It also features our exclusive welded Lamina™ construction that maximizes 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.

Details

Materials

  • Fabric Body: 30D Nylon Ripstop
  • Insulation: Thermal.Q™ 60 g/m²
  • Bag Fill Type: SYNTHETIC

Measurements

  • Weight: Regular 2 lb 1.9 oz / 960 g; Long 2 lb 5 oz / 1050 g
  • Bag Shape: Comfort Mummy Cut
  • Bag Loft: 3 in / 8 cm
  • EN Rating: T-COMFORT: 42 F / 6 C
  • EN Rating: T-LIMIT: 34 F / 1 C
  • EN Rating: T-EXTREME: 6 F / -14 C
  • Bag Stuffed Size: 6 in / 15 cm x 12 in / 30 cm
  • Inside Length Regular: 78 in / 198 cm
  • Inside Length Long: 84 in / 213 cm
  • Hip Girth Regular: 59 in / 150 cm
  • Hip Girth Long: 64 in / 163 cm
  • Shoulder Girth Regular: 63 in / 160 cm
  • Shoulder Girth Long: 65 in / 165 cm
  • Foot Girth Regular: 41 in / 104 cm
  • Foot Girth Long: 43 in / 109 cm

    Details

  • Proprietary, welded Lamina™ construction enhances loft and eliminates cold spots
  • Zoned insulation maximizes warmth where it's needed most
  • ThermalQ® insulation has outstanding compressibility and maintains excellent loft
  • Comfort mummy cut efficiently maximizes weight without constriction
  • 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
  • Imported

Reviews

Lamina™ Z Spark 34°F / 1°C Sleeping Bag is rated 4.2 out of 5 by 5.
Rated 3 out of 5 by from Impressed Until 50 Degrees The bag is true to size and weight. I enjoyed the ability to pack and carry a lightweight bag, and the materials are comfortable. I'm 5'10" and I weigh 165 pounds, and I found the "Regular" to be appropriately sized. The "hood" fits well and the bag was comfortable for 10 nights in the backcountry... until the temperature dropped below 50 degrees fahrenheit. The comfort rating for this bag lists 42 degrees F; however, I awoke due to cold each night the temps dropped below 50. I had to sleep in wool long underwear, a quarter zip, and even a puffy jacket to stay warm. When the temperature dropped to 42F (the stated comfort threshold) I had to wear all the above plus a hat, as well. I will admit I'm a cold-natured person, but this bag's rating is misleading. My son and dad used the same bag on our trip and they have the same opinion. Even my wife, who typically sleeps with a leg out because she gets hot while sleeping, had to wear additional clothing to stay warm in this bag. I will recommend the product but only if the buyer considers using a colder rated bag than anticipated.
Date published: 2018-08-13
Rated 5 out of 5 by from Really impressed with this product In a recent summer tent night in the Pyrenees of around 50° I couldn't close the bag as it was way too warm. Feels and compresses almost as a down bag, weighs little more than a down bag of the same warmth, but is more durable. Half the price of a comparable downbag - not much reason to buy down anymore.
Date published: 2018-08-13
Rated 4 out of 5 by from Pocket on wrong side! This is my 3rd Lamina; best bags for the money. I bought this one because I read it was lighter, packed tighter and was warmer. Well it's not warmer, smaller, or lighter than my green 35 but Mtnwear has moved the pocket from the logical side by zipper to opposite side?! Obviously whoever made this decision did not ever use the pocket. I used to keep my glasses in this pocket and just shifted the bag slightly to keep the zipper (& pocket) over my left shoulder at all times. Worked great. But now the pocket is useless as a shift either direction puts a bump underneath me. Plus to get to the pocket now you have to unzip much more than before. Bad design change. If anyone reads this, put the pocket back by the zipper and keep making quality bags for a great price.
Date published: 2017-11-12
Rated 4 out of 5 by from Great bag for buck! Recently bought this bag to replace my bag that was years old and much larger this not only was warmer but smaller and lighter. One feature I loved with this bag is the zipper pocket that I was able to store my phone in while I slept. I would recommend this bag
Date published: 2017-01-18
Rated 5 out of 5 by from Outstanding Comfort and Warmth I have been a lifelong overkill purchaser of sleeping bags. The majority have been too warm, big and of poor quality. The decision to buy nice not twice steered me into purchasing this bag and I am so happy that I have. In a backpacking trip that was met with PacNw damp weather and frosty mornings, the Lamina Z Spark delivered. Light enough to haul, compact enough to allow more food, and warm enough to sleep the night through. Great bag for the buck!
Date published: 2016-09-19
  • y_2018, m_9, d_18, h_14
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.8
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_5
  • loc_en_US, sid_1568351, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_mountainhardwear
ELEVATED REWARDS
JOIN NOW AND GET FREE SHIPPING
Members receive free ground shipping and exclusive offers.
Join Now ›
ELEVATED REWARDS LOG IN
Don't have an account? Join now!