Mountain Equipment Xero 550 XL - Zip Right - Discontinued model save 30%
For the fastest moving Alpinists, runners and trekkers weight and pack size are everything. Our Xero range represents our lightest sleeping bags for the most serious minimalist users.Detail images are shown in a different color.

The newly developed Alpine Fit combines ground level seams and re-profiled down distribution to optimise thermal efficiency and minimise weight and bulk. The highest quality goose down is brought together with our lightest fabrics and EXL® technology for uncompromising performance and the highest possible warmth-to-weight ratio.

Already amongst the lightest bags of their type in the world, the reworked Xero range remains the perfect choice for anyone who travels light and fast in difficult or remote environments.

Alpine Fit with EXL® top lining to improve loft, thermal efficiency and comfort.

Trapezium 4
4 baffle trapezoid foot piece with Bulls-Eye technology for down control and low weight.
DC7 Hood
7 baffles and anatomical fit provide excellent warmth and down control with low weight.

Solus Collar
For optimum lightweight insulation with down draft tubes on Xero 550 and Xero 300.

Ground Level Seams
maximises insulation at the sides of the bag.

Slanted Box Wall Construction
Offers a stable and superlight structure with excellent stability and down scontrol.

Baffle Walls
30g baffle walls for down control and structure.

3/4 length side zip with anti-snag baffle.

Supplied with roll-top waterproof compression sack and mesh storage sack.


  • Form: Mummy
  • Color: True Red
  • Manufacturer Guarantee: 10 Years


  • Recommended Body Length: 200 cm
  • Overall Length: 227 cm
  • Width (Shoulder): 78 cm
  • Width (Foot): 51 cm

Temperature Range

  • Comfort: -1°C
  • Limit: -8°C
  • Tolerance: -25°C
  • Maximum: 15°C

Weight / Pack size

  • Weight: 1175 g
  • Pack size (L x Ø): 32 cm x 19 cm


  • Type: Down
  • Material: Ukrainian Goose Down
  • Weight: 600 g
  • CuIn: 850


  • Shell: He30
  • Liner: Supersoft 20

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