Cumulus X-Lite 300

The sleeping bags of the X-Lite series are the lightest in the world when it comes to the weight-to-warmth ratio. Reducing the weight of luggage is our most important mission, which we fulfill thanks to our many years of experience in redefining the word "light."

To achieve this goal, we have applied a number of solutions: We made the sleeping bag from the world's lightest downproof fabric, the 19-gram Toray Airtastic™, used a lightweight 3-millimeter zipper with a 2/3 length, and a cut that simultaneously contributes to improving insulation. During development, we were primarily guided by minimalism, so the sleeping bag is free of unnecessary elements that could unnecessarily increase its weight. Nevertheless, its use is extremely comfortable thanks to the anatomical footbox (shark fin) and the three-dimensional hood construction. For such an unusual product, we could only use an equally unusual filling: Ethically sourced Polish goose down with a fill power of 900.

Whether it's trail running, ultramarathon, bikepacking, or sport climbing – when speed counts, X-Lite is the first choice. If space is important to you and you don't compromise on the weight of your equipment, the X-Lite is your choice.

• DOWN QUALITY: 900 FP
• TOTAL WEIGHT: 465 g
• FILLING WEIGHT: 300 g
• SLEEPING BAG WEIGHT WITHOUT FILLING: 165 g
• COMFORT TEMPERATURE: 2 °C Limit: -4 °C EXTREME: -20 °C
• MAX. BODY LENGTH: 185 cm
• WIDTH (TOP/BOTTOM): 77/42 cm
• PACK SACK DIMENSIONS (HEIGHT / DIAMETER): 20/15 cm
• PACK SACK VOLUME: 3.5 l
• Filling: 900 Fill Power, ethically sourced, Polish goose down
• Outer and inner material: Toray Airtastic™ 19 g/m², 7-denier ripstop, with DWR (100% nylon)
• Fabric certificates: bluesign®
• Construction: Trapezoidal baffles
• Close-fitting mummy shape
• YKK® zipper, 3 mm for 2/3 length, with 2 self-locking sliders
• Zipper baffle
• Three-dimensional hood
• 2 tangibly different drawcords in the hood
• Separately filled top and bottom
• Shark fin footbox Minimalist, weight-saving design and components
• Can be coupled with X-Lite series sleeping bags
• Stuff sack and storage bag included