+ 3
Weight
465 g
Cumulus X-Lite 300
If you are a dedicated minimalist and are truly concerned about every gram and inch of space in your backpack, the X-Lite series should definitely be on your radar. With a simple design stripped of all unnecessary elements and top-quality down with ultralight fabric, X-Lite sleeping bags are among the lightest in the world. The version with 300 grams of down is ideal from spring to autumn.
One of the lightest three-season sleeping bags in the world. Total weight 465 grams.
Materials
The body of the sleeping bag is made from an ultralight and packable fabric, Toray Airtastic 19 g/m². It is one of the lightest fabrics in the world, which does not allow down to escape and has sufficient durability for use in sleeping bags. It is well breathable, windproof, and very pleasant to the touch. The outer side of the fabric is treated with a durable water-repellent (DWR) coating that traps light condensation or a few drops of water. Thanks to the shade of the fabric used, you can even see through the sleeping bag.
The filling consists of 300 grams of goose down with a fill power of 900 cuin! The ratio of down to small feathers is 95/5. The upper chambers are separated from the lower ones and are filled with slightly more down. The down is distributed in a ratio of 55/45. The weight of the sleeping bag's construction without down is a mere 165 grams, making the total weight 465 grams.
Construction and features
The sleeping bag uses trapezoid chambers that prevent the formation of "cold spots" at the seam of two chambers. The width of the sleeping bag at the shoulders is 77 cm and at the hips is 51 cm. Based on our experience, the basic size M is suitable for individuals with a height of up to 183 cm.
For easy orientation, the tightening of the hood and collar is distinguished; you tighten the hood with a flat strap and the collar with an elastic band. The last chamber at the neck is filled with a larger amount of down, creating a comfortable collar that prevents heat loss. The foot box construction, called Shark-fin, prevents down compression, is comfortable, and provides better thermal performance than standard constructions.
The sleeping bag zipper has a two-thirds length and is equipped with two sliders for ventilation. On the inside behind the zipper, there is a down-filled insulating tube to prevent heat loss.
Sleeping bag accessories
A simple travel storage sack is included with the sleeping bag. The sleeping bag has a cylindrical shape with a volume of 4,2 liters and dimensions of 20/15 cm (height/diameter).
The original sack cannot be further compressed and is not waterproof, so we recommend getting a sack that that solves both problems. The ideal choice is STS compression sack eVENT Ultra-Sil of size XS or a classic waterproof bag Sea To Summit Ultra-Sil Dry Sack about size 8 l.
You also get a large storage bag for home use with the sleeping bag, so the sleeping bag isn't unnecessarily compressed for a long time.
Product data
Cumulus X-Lite 300
Usage
SizeM
ColorYellow
Zip positionLeft
Weight465 g
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Comfort temperature2 °C
Limit temperature-4 °C
Extreme temperature-20 °C
Season3-season
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Chamber designTrapezoid chambers
Filling chambers55:45
Down feather ration95/5
Chambers quantity33
Zip positionLeft, Right
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Down weigth300 g
Down typeGoose
Fill power900 cuin
Hydrophobic downNo
MaterialToray Airtastic (DWR, 19 g/m², 7D ripstop nylon), YKK 3 mm zipper
Insulation typeDown
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Width shoulders level77 cm
Width hip level42 cm
Stuffsack volume3,5 l
Dimension packed20 × 15 cm
SizeS, M, L
Other
ColorYellow
ManufacturerCumulus
We will help you with your selection
If you are unsure about which size or color to choose, or if you have any other questions, feel free to contact us via email or directly in the online chat. We are here for you.
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