One Planet Sac -1

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Sac -1 


The Sac -1 is the workhorse of the Sac series: with a -1 comfort limit, it is at home in-house or in the outhouse! This easy-care sleeping bag is designed for general use.

The Sac is not as simple as its name suggests. It features the latest in sleeping bag technology: Thermolinkfill; lightweight, breathable Vapour Vent fabric; a comfortable, efficient, tapered rectangular shape and all the technical features you expect from a One Planet bag.

  • Tapered rectangular shape gives extra room and versatility.
  • Light, compact and durable Thermolink fill.
  • Uses strong, highly breathable 30-denier Vapour Vent for inner and outer fabric.
  • Three-dimensional hood and foot increase comfort and warmth.
  • The 3D neck muff and twin draft tubes on the zip keep warm air in.
  • Bi-directional zips allow you to vent your feet or zip the bag to others in the One Planet range.
  • Available in regular and large sizes.


Thermolink fill

All One Planet synthetic bags use Thermolink, our new fabulous fill. This gives a massive 15 per cent increase in warmth when tested to the European standard, meaning we can make our bags 200-300 grams lighter. Thermolink is a bonded fibre, with the fibre blanket linked throughout its thickness. This makes it strong and eliminates the need for sewn-through stitching, as well as the accompanying heat loss. 

The synthetic range is made in China due to manufacturing constraints in the Melbourne factory.



Bag weight (g)

R: 1040
L: 1160

Fill type


Inner and outer fabric

30 denier Vapour Vent


Tapered rectangular

Foot type

3D taper

Temperature ratings, ºC

4 comfort, -1 limit of comfort, -16 extreme


Season rating


Possible uses

General use, 2/3 season travel and camping


R: left, right
L: left

Sizes (user height x shoulder circumference, cm)

R: 187 x 160
L: 195 x 175



Stuff sack capacity (litres)

R: 8
L: 10



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Brand One Planet

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