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Marmot Never Winter sleeping bag - outdoor review

Marmot Never Winter sleeping bag - outdoor review

At the beginning of May, I received for testing a Marmot down sleeping bag Never Winter Long. This sleeping bag is Anatomically. Filled with duck down 650 CUI. It is dedicated to a temperature of 3.1 / -2.2 / -18 ° C.

It spent a few nights in a tent in Sokoły, some also were used on the go. However, this is still not enough so I could write about it specifically, so hence a form of "first impressions". The manufacturer's description below, and finally I put my observations.

Product details

spiwor marmot never winter long

The Never Winter is an ideal summer bag for camping and river trips, but it also has enough down insulation to keep you warm when frost is in the air. Updated with our Down Defender treatment offering an extra level of moisture protection for sleeping bags exposed to wet environments.

Feature List

Certified 650 Fill Power Down

Down Defender to Improve Water-Resistance in Wet Conditions

EN Tested

Nautilus 5-Baffle Hood

Down-filled Collar with Easy Access Draw Cord

Heat Bump Draft Tube

Classic Trapezoidal Foot Box

"Feely" Draw Cords

Ground-Level Side Seams

Hood Draw Cord

Locking Zippers

Stash Pocket

Stretch Tricot Baffles

Stuff and Storage Sack Included

Two Hang Loops

Two Way Zipper Sliders

Velcro®-free Face Muff

Zipper Guards

Main Materials

100% Nylon Ripstop AC 1.3 oz/yd, 100% Nylon WR 1.4 oz/yd

Lining Material

100% Nylon Plain Weave WR 1.3 oz/yd

Insulation Material

650 Fill Power Down

Fill Weight

12oz (340g)

Bag Loft


Bag Temperature F

30° F

Bag Temperature C

-1° C

EN Rating

Comfort: 37.6°F / 3.1°C | Lower Limit: 28°F / -2.2°C | Extreme: -0.4°F / -18.0°C

Interior Length

85in (216cm)

Bag Dimensions (Shoulder x Hip x Foot)

63in (160cm) x 57in (145cm) x 41in (104cm)

Bag Zipper position



2lbs 0oz (830g)

spiwor marmot never winter long


First impressions

After I take sleeping bag out of the box immediately feel the novelty it ... quite literally. To this day, after several nights of use yet still I feel a peculiar smell. We'll see when it disappears. Never Winter is produced in a nice green color to the eye.

The Sleeping bag comes with a large mesh bag storage, and compression sack allowing his pack to smaller dimensions.

spiwor marmot never winter long

Never Winter packaged in a compression sack. Fig. Damian Granowski


Long sleeping bag version is quite extensive, providing comfortable accommodation and a pretty good body position in a sleeping bag.
Marmot Never Winter has a hood with a drawstring, which is located outside the sleeping bag. Just reach out to the side and you can adjust it. It is quite comfortable, and the string does not bother while sleeping. In my previous sleeping bags cord, he was on the edge of the hood and at night often landed me somewhere on the face. Generally, simple and easy.

Sleeping bag has a zipper YKK, which moves quite smoothly. Is protected against cold strip. Additionally, in the middle we have a small pocket for cell zipped.

spiwor marmot never winter long

I miss him inside strip, around the neck, which would prevent heat loss. In all this is a minor detail, and certainly it would increase thermal comfort on cold nights.

Temperature range

The manufacturer will provide a range of temperatures 3.1 / -2.2 / -18 ° C. What is interesting on a sleeping bag are added ranges for sex - and so 3.1 is more comfortable for women, and -2.2 is for men. It is known that the last value rather has little meaning. For typical users assume that the sleeping bag will keep comfortable at temperatures 0-3 ° C and higher. It seems to me that the lowest temperature at which it slept is 5 ° C and thermal comfort was fully sufficient (peaceful night's sleep).

spiwor marmot never winter long

The technology uses a sleeping bag Down Defender. Below some information from the manufacturer:

Marmot Down Defender is a way to protect clothing of down. It is a powder coated respondent water, down-filled garments providing protection from moisture. This prevents caking powder to clump and high ratio of heat loss to the ground during contact with water, thereby increasing the ability to maintain warmth and comfort.

Features Down Defender:
It remains dry 10 times longer than down without a protective coating
Retains 150% higher heat-to-weight ratio in the wet conditions than a normal down
It dries 30% faster than down without a protective coating
The technology approved by Bluesign

How does it work?
Coating covers the various clusters of down feathers DWR water-repellent finish at the molecular level. The coating is applied during the cleaning process down. The finish is very durable, providing resistance to humidity for more than 20 washes. In addition, the coating increases the integrity of fluff, durability and longevity of its clusters.

spiwor never winter long marmot

In summary, in my Marmot Never Winter is recommendable sleeping bag for people who want to have Anatomically (spring, summer and autumn) sleeping bag for a reasonable price, which will be checked in various conditions and terrain. Camping, hostels, camping in a tent (or outdoors), traveling situations in which the check good.

If as use something changed this will add appropriate annotations to the text.


Last modified onSaturday, 26 September 2015 05:55

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