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Sea To Summit

Reactor Thermolite Liner

sku# 10161750500000

Product Description

The “Reactor” is made from Thermolite®, a hollow core fiber that provides extraordinary warmth for its weight and remains extremely breathable. Adds up to 15 degrees F / 8 degrees C of warmth to a sleeping bag or, used alone, is the ideal warm weather bag.


  • Lighter weight, more packable than fleece
    adds up to 15 degrees F / 8 degrees C of warmth to a sleeping bag
  • Mummy shape with a box foot
  • Draw cord hood with mini cord lock


  • Weighs just 8.7oz
  • Packs into its own 3” x 5” Sil Nylon Stuff Sack

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