X-Lite 300 (2℃)



Filling of pure 900 cuin goose down, the bag compresses up to 3.5 liters. Mummy-type design with hood ensures excellent technical insulation and is ideal for moderate temperatures close to 0°C.

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Ultralight Sleeping Bag

The X-Lite 300 is an ultralight sleeping bag manufactured by the Polish company Cumulus, standing out as one of the lightest and most compact products on the market.

When to Use

Designed for moderate temperatures, the X-Lite 300 offers a comfort temperature close to 0°C when used with a single base layer. If you seek slightly more heat retention without compromising weight or are a hiker sensitive to cold, consider the X-Lite 400 with a comfort temperature of around -5°C.

Ideal for spring, summer, and autumn use, it’s perfect for cool but not extremely cold nights. Concerned about volume and not wanting a larger bag, you have the option to combine it with your down jacket (layering system) for temperatures below -3°C.

saco ultraligero


Featuring a classic mummy-style design, it includes an adjustable hood and trapezoidal chambers ensuring excellent thermal insulation, retaining heat effectively. The double-closure zipper covers two-thirds of its length, allowing for easy entry and exit.

900 Fill Power Down Filling

Filled with 300 grams of pure Polish goose down with a 900 fill power, ensuring outstanding thermal insulation and exceptional compression.

The fabric used is one of the lightest on the market: Toray® Airtastic, weighing only 19 g/m² and made of 7 deniers with a DWR finish. Highly wind and water-resistant, it’s designed to prevent down feathers from protruding from the sleeping bag (Feather Proof).


  • Color: Fall Leaf Toray.
  • Weight: 465g (±5%).
  • Down Filling: 300g.
  • Left-sided zipper.
  • For individuals up to 185cm.
  • Comes with a 3.5L compression sack.

Measurement Charts


Comfort 2℃
Límite -4℃
Extrema -20℃


Dimensions (One Size)

Length 202cm
Width 77/42cm
For individuals up to 185cm


Ratings and Reviews

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SKU: X-Lite 300 Category: Brand: