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The THERMOLITE® Reactor™ Compact Plus from Sea to Summit can increase sleeping bag performance by up to 11ºC with dual-weight THERMOLITE® fabric.


Our regular 80g/m2 is combined with panels of 110g/m2 THERMOLITE® in the core body and footbox areas adding extra warmth, while the ergonomic design shaves off excess weight. Ideal for gram counters under six feet tall.

Sea to Summit Reactor™ Compact Plus Sleeping Bag Liner

  • • First dual fabric sleeping bag liner

    • 110g/m2 THERMOLITE® panels in core body and foot areas for extra warmth

    • Compact, shorter design is ideal for women and youth

    • Extends life of sleeping bags by keeping them clean

    • Contrasting colour along the top edge makes it easier to find the opening

    • Packs into its own Ultra-Sil™ stuff sack

    Standard Extra Warmth – Up to 11ºC. Weight 263g

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