X-Boil FS Ultralight

Ultralight version of the ultra-minimalist X-Boil stove, includes burner, windscreen and bottle. +
  • +++ Note PoidsDescription poids au survol
  • ++ Note PuissanceDescription puissance au survol
  • +++ Note Protection au ventDescription protection au vent au survol
  • ++ Note SoliditéDescription solidité au survol
  • ++ Note StabilitéDescription stabilité au survol
  • +++ Note EncombrementDescription encombrement au survol

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In stock
€47.50

The X-Boil FS Ultralight is a handmade alcohol stove made in Germany. Ultralight, it's hard to get much lighter than this and still perform as well. It's ideal for boiling water quickly, a minimalist design for one or two people. This Ultralight version has a smaller diameter burner and a more refined windscreen. The kit includes :


A 5.5-centimetre diameter, 12-gram aluminium alcohol burner. This is compatible with liquid alcohol, solid alcohol (such as Esbit tablets) and combustion gel (such as Fire Dragon). Inside there's a graphite felt pad (for use with liquid alcohol only), to ensure even combustion and prevent alcohol spillage.


A steel windscreen, 6.9 cm high for the FS 75-85 and 7.4 cm high for the FS 90-100. Available in two diameters, it acts both as a windscreen for the burner and as a support for your popote, thanks to 3 small titanium legs. It is possible to do without these 3 lugs and replace them with 2 titanium pegs, for example, as 4 holes are provided at the top for this purpose. The windscreen can be unclipped so that it can be rolled up and stored in the picnic basket.


A 30-millilitre bottle for carrying 8-gram methylated spirits. It stores enough alcohol for one use.


X-Boil FS Ultralight is available in different sizes to fit your cooker. It is also designed to fit perfectly with Toaks products.



  • Size XS: FS 75-85 Ultralight for a 7.5 to 8.5 cm pot, fits the Toaks 450

  • Size S: FS 90-100 Ultralight for a 9.0 to 10.0 cm mug, fits Toaks 550, 650 and 750


Quantity of burner alcohol needed to boil water with an FS Standard (estimate varies according to ambient and water temperature):



  • 0.3 litres of water: approximately 8-11 grams of liquid alcohol

  • 0.5 litres of water: approximately 14-16 grams of liquid alcohol

  • 1.0 litre of water: approximately 24-26 grams of liquid alcohol

Manufacturer X-Boil
Name FS 75-85 Ultralight - FS 90-100 Ultralight
Fuel type Alcohol
Number of people 1-2 people
Materials Aluminium (burner), steel (windscreen), titanium (support)
Dimensions XS : 75-85 mm x 69 mm - S : 90-100 cm x 74 mm
Weight XS : 40 g - S : 45 g (without the bottle)
Additional information

The kit includes

  • The alcohol burner, with its felt cover
  • Windscreen, with 3 support legs
  • 30 ml bottle
Warranty 2 years
Weight +++
Solidity ++
Power ++
Stability ++
Compact +++
Wind protection +++

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