Sea to Summit Thermolite® Reactor

Increases sleeping bag performance by up to 8°C
In stock

Delivery Time: 2-3 days*
Incl. 19% Tax, excl. Shipping Cost
Sea to Summit Thermolite® Reactor is available to buy in increments of 1

Weight: 248 g
Size: 90 x 210 cm
Material: 100% Polyester (Thermolite®)

The Thermolite® Reactor increases sleeping bag performance by up to 8°C. It is also Sea to Summit's bestselling sleeping bag liner! The Reactor is made from 80 g/ m² Thermolite® - the lightest weight Thermolite® fabric available. Thermolite® is a hollow core fibre that provides amazing warmth for its weight and remains extremely breathable. It can of course be used alone as a warm weather bag, too.


  • Lighter weight, more packable than fleece
  • Mummy shape with a box foot
  • Drawcord hood with mini cord lock
  • Contrasting color along the top edge makes it easier to find the opening
  • Packs into its own Ultra-Sil® stuff sack
More Information
Manufacturer Sea to Summit
Video Block N/A
Size table block N/A
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