Sea To Summit Thermolite Reactor Liner

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Our most popular sleeping bag liner! The Reactor is made from 80g/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. The Reactor adds up to 8°C of warmth to your sleeping bag or can be used alone as a warm weather bag.

Detailed Description

  • Lighter weight, more packable than fleece
  • Mummy shape with a box foot
  • Drawcord hood with mini cord lock
  • Extends life of sleeping bags by keeping them clean
  • Contrasting colour along the top edge makes it easier to find the opening
  • Adds warmth to a sleeping bag
  • Packs into its own UltraSil® stuff sack
  • Machine washable
Specifications