
Original: $109.99
-65%$109.99
$38.50The Story
Sea to Summit Reactor Fleeceweight Sleeping Bag Liner
Boost the warmth and performance of your sleep system with the Reactor Fleeceweight sleeping bag liner. Built with Thermolite® hollow-core fibres and grid fleece, it traps and reflects body heat to add up to 8°C / 14°F of extra warmth with minimal weight or bulk.
The stretch fleece construction and integrated arm openings provide freedom of movement, while snap attachments pair seamlessly with Sea to Summit sleeping bags for easy entry and exit. Quick-drying, easy to clean and treated with HeiQ Fresh odour control, it stays fresher for longer on extended trips.
Using a sleeping bag liner helps reduce the need for frequent washing, preserving loft and extending the lifespan of your sleeping bag — making it a smart upgrade for camping, hiking and cold-weather adventures.
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Best UseCold-weather backpacking, Ski touring, (Stand-alone) summer use
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Material(s)100% Post-Consumer Recycled Polyester; Stuff Sack: 100% Polyester


Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
Sea to Summit Reactor Fleeceweight Sleeping Bag Liner
Boost the warmth and performance of your sleep system with the Reactor Fleeceweight sleeping bag liner. Built with Thermolite® hollow-core fibres and grid fleece, it traps and reflects body heat to add up to 8°C / 14°F of extra warmth with minimal weight or bulk.
The stretch fleece construction and integrated arm openings provide freedom of movement, while snap attachments pair seamlessly with Sea to Summit sleeping bags for easy entry and exit. Quick-drying, easy to clean and treated with HeiQ Fresh odour control, it stays fresher for longer on extended trips.
Using a sleeping bag liner helps reduce the need for frequent washing, preserving loft and extending the lifespan of your sleeping bag — making it a smart upgrade for camping, hiking and cold-weather adventures.
-
Best UseCold-weather backpacking, Ski touring, (Stand-alone) summer use
-
Material(s)100% Post-Consumer Recycled Polyester; Stuff Sack: 100% Polyester























