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Sea to Summit Thermolite Reactor Extreme

Sea to Summit Thermolite Reactor Extreme

Sea to Summit

With the stretchy knit fabric that moves with you and a draw cord hood, this liner is perfect for wrigglers or anyone who needs some extra warmth.

Sea to Summit

Sea to Summit Thermolite Reactor Extreme

Sea to Summit Thermolite Reactor Extreme

Sea to Summit

With the stretchy knit fabric that moves with you and a draw cord hood, this liner is perfect for wrigglers or anyone who needs some extra warmth.

Sea to Summit
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The Thermolite Reactor Extreme increases sleeping bag performance by up to 15C with its super insulating 110g/m Thermolite fabric. Spacious design allows for a comfortable night's sleep, even when the mercury plummets. Thermolite is a fibre with a hollow core that provides extraordinary warmth for its weight while remaining extremely breathable. The Thermolite Reactor Extreme adds warmth to a sleeping bag or, used alone, is ideal as a warm weather bag.


Design features:

  • Mummy shape with a box foot
  • Drawcord hood with mini cord lock
  • Packs into its own Ultra-Sil stuff sack

  • Weight: 399 g
  • Dimensions: 210 cm (H) x 90 cm (W)

  • Thermolite fabric: ensures up to 15⁰C of additional heat

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