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Northstar Tactical Coretech Mummy, Multi Layer Core Sleeping Bag, with Camping Compression Stuff Storage Bag
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- Heat generated by the body's core will circulate through more evenly through your body for ultimate comfort and performance
- Designed to keep the body's core at a more comfortable temperature. Rated to 0 Degree Lowest Temp Rating with insulated draft tube
- Our New Technology includes a Third Layer of "Ultra Compactable Siliconized Air Core Fill" in the chest area of the bag
- Durable and light poly ripstop cover with chest tuber. 3.5lbs fill 86" X 34" X 24" Two way zipper with oversize pull cord
- Compression Stuff Sacks with Draw String Closure and Flip Over Cap. 2 Fast Clip Closure and Quick Web Adjust on all 4 Straps. Box Stitched on all pressure points for Strength
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From the manufacturer
Coretech bags wrap an additional layer of fill around the abdominal region of the sleeping bag, where the body needs it most. Reduced weight with minimal loss of heat.
Built For Life
Heavy duty design elements include soft poly rip-stop shell fabric, large #10 dual slider zippers, hydrophobic synthetic high loft fill, and a tough compression tote.
3D Gusseted Design
Air core fill reinforced sidewall keeps bag tall providing room for large feet and makes rolling over easy for a bigger person in the tapered mummy shape.
Internal pocket between chest and hood baffles to keep precious items hidden while you are away or asleep. Be close to your passport, wallet, jewelry, or mobile alarm clock.
Technical Highlight : Synthetic Fill
Coretech Bags utilize fully synthetic fill material selected based on four factors:
Compression To Loft Ratio: Silicon air core hollow fiber quickly restores to maximum loft from a highly compressed state.
Thermal Performance: Lightweight high loft fiber creates a wide buffer zone to trap heat, keeping the occupant warm in the tent and light on the trail.
Hydrophobic Profile: Synthetic material that resists bonding to organic molecules so it dries out quickly to minimize odor and maximize trail time.
Ecological Responsibility: Coretech Bags are Buy It For Life products - built to withstand the test of time. Rugged synthetic fill keeps feathers on birds, where they belong.
|T.O.S.B.||CORETECH 2.5||CORETECH 3.5||SUB ZERO|
|Survival Temp||30 °F ( -1 °C )||25 °F ( -3 °C )||0 °F ( -17 °C )||-15 °F ( -26 °C )|
|Maximum Comfort||45 °F ( 7 °C )||40 °F ( 4 °C )||15 °F ( -9 °C )||0 °F ( -17 °C )|
|Weight||2.8 lb ( 1.27 kg )||4.8 lb ( 2.17 kg )||5.5 lb ( 2.3 kg )||7.5 lb ( 3.4 kg )|
|Length * Width * Height||85” x 30” x 19.5”( 215 x 76 x 49 cm )||86” x 36” x 24”( 218 x 91 x 60 cm )||86” x 36” x 24”( 218 x 91 x 60 cm )||86” x 36” x 24”( 218 x 91 x 60 cm )|
|Layers at Extremeties||2||2||3||4|
|Layers at Core||2||3||4||4|
Heavy Duty Construction Elements
Rip Stop Fabric
Rich color poly rip-stop shell fabric will look good well down the road. Tough shell fabric protects from abrasions. Impregnated dye fabric is colorfast in the washing machine and resists fading under UV light compared to other dye methods.
Big Time Zipper
Large format dual slider detachable metal zipper allows occupant to open from the top and the bottom of the bag for maximum airflow in warm environments. Reflective fabric pull tabs aide zipper identification and fumble free handling in low light conditions.
Store the sleeping bag quickly in this handy draw string stuff sack. 4 Compression straps ensure smallest stow size. Two buckles snap open for quick sleeping bag access.
CoreTech Bags are designed to keep your body's core at a more comfortable temperature. Includes a third layer of “Ultra Compactable Siliconized Air Core fill” in the chest area of the bag. Keeps warm air in and locks cold air out. The heat generated by your core will circulate through your body for ultimate comfort and performance. CoreTech Bags are designed to use the insulation in the most efficient manner possible by putting the insulation where your body needs it most. Rip-stop polyester outer. Fully adjustable tapered hood, full chest bafﬂe, zipper guard to keep zipper from catching fabric and insulted draft tube keeps cold air out. Bag measures 86" x 36" x 24". Full barrel foot.
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Top customer reviews
I am 5'10" and it is more than long enough for my body. I would say there is about another 5 or 6 inches of space in length. The foot box is quite roomy so it allows for movement while all bundled up. The zipper parts are all heavy duty with a large zipper "track" so it doesn't split open or get easily caught on the sleeping bag material like smaller zippers often do. The hood portion of the bag doesn't seal perfectly around the face, but here in southern California, it doesn't really get lower than 40 F unless you're in the mountains, so that's not a deal breaker. The draw strings to tighten the hood and area that goes around your neck/shoulders are easy to reach and use. The material seems to be a slightly heavier material than a lot of cheaper bags or backpacking bags. Stuffing the bag into the stuff sack that it comes with is very easy, but it doesn't compress down to the size that you would want for backpacking. Additionally, it's a bit heavy so I'm not sure you'd want to use this bag for hiking where you're trying to cut weight. Been using this bag for about a year on some camping trips where the temps got down to the low 40s F and the bag was very warm and cozy.
(PS: I am a fat kid on pancakes.)
In 40F-50F degree weather without rain, I was perfectly toasty and comfortable in a hammock without a liner or pad. Hammock camping supposedly reduces the efficacy of this bag, but it was more than sufficient in the conditions I used it. I left it partially unzipped as necessary to prevent overheating and encourage comfortable sleeping.
Historically, I tend to get cold spots around the feet in sleeping bags. Not so with this bag. Without any socks or special insulation for the feet, they remained quite comfortable.
As for the item's size, it was less than ideal for bike touring. I had no trouble carrying it, but a smaller bag would have been much easier to carry. The bag definitely has some heft to it which increased my load, but understandably so considering the bag's warmness. I did not attempt to compress the bag heavily since its lack of compression did not impact my ability to load it on the bike's rack or carry it.
I'm quite pleased, for sure. I'm looking forward to colder camping in comfort.
Be advised, the "Zero degree" rating is a "Survival" temp - the "comfort" level is around 30 degrees, F. Of course, comfort is a way subjective idea. Depending on your base layer, dampness, wind, age, weight, blood circulation, sleep pad and/or cot use, your experience will be slightly (or greatly) different. I'm 51, in fair shape, overweight (5'6", 215 lbs.). I use a REI sleep pad with a "Helinox" brand cot. Conditions ranged from totally dry to heavy morning dew. So, in conclusion, I'd recommend this bag. It's lightweight, packs small enough for motorcycle use, and is relatively roomy. On size, I'm short, so no biggie there, but it seems long enough that six-footers should still have ample room. As for comfort temp, I'd say 30 degrees without a bag liner, maybe as low as 20 deg with one.