Cumulus X-Lite 400

Cumulus X-Lite 400

Cumulus X-Lite 400 sleeping bag represents the absolute best in weight-to-warmth efficiency. Crafted from the world’s lightest down-proof fabric, the 19-gram Toray Airtastic, it features a 2/3-length 3mm YKK® zipper and a slim profile optimized to enhance down efficiency.

With a minimalist design, the X-Lite eliminates all unnecessary features to keep weight low while maintaining exceptional comfort. Its anatomically shaped footbox and 3D hood design ensure a cozy and snug fit. The fill is premium-quality, ethically sourced 900 FP goose down for maximum warmth with a clear conscience.

The X-Lite is the perfect choice for fast-paced adventures, whether trail running, ultralight backpacking, bikepacking, or alpine climbing. If ultralight gear and packability are your priorities, the X-Lite is your ultimate sleeping bag.

Specifications:

• Down Quality: 900 FP ethically sourced European goose down
• Total Weight: 575 g
• Down Weight: 400 g
• Shell Weight (empty): 175 g
• Max User Height: 185 cm
• Length: 202 cm
• Width (Shoulders/Feet): 77/42 cm
• Comfort Temperature: -1 °C
• Limit Temperature: -7 °C
• Extreme Temperature: -24 °C
• Packed Size (Height/Diameter): 25/16 cm
• Packed Volume: 5 L
• Down Chambers: 33

Materials and Features:

• Fill: 900 FP European goose down, ethically sourced
• Shell and Lining: Toray® Airtastic 19 g/m², 7-denier ripstop, DWR-treated (100% nylon)
• 2/3-length 3mm YKK® zipper with dual locking sliders
• Minimalist, weight-saving design and components
• Down-filled draft tube along the zipper
• Slim-fit mummy shape
• Anatomical shark-fin footbox
• 3D hood design with dual drawcords for easy adjustment in the dark
• Trapezoidal baffle construction
• Differential fill between the front and back
• Compatible with other X-Lite series sleeping bags
• Includes a compression sack and storage bag