Reactor Extreme Liner (adds up to 25°F) - Past Season (Like New)
The THERMOLITEĀ® Reactor⢠Extreme liner is Sea to Summitās warmest knitted sleeping bag liner. If your adventures take you to colder climates, the Reactor Extreme will add plenty of warmth to a sleeping bag. Plus in warmer weather, it can be used as a āstand aloneā sleeping bag. The hollow core fibers of the THERMOLITEĀ® fabric work like a polar bear's fur and, along with the knitted structure, trap plenty of insulating air. Super soft and amazingly stretchy, the Reactor Extreme uses a heavier version of THERMOLITEĀ® Ā to provide extra warmth for an incredibly comfortable nightās sleep. Use one to build your cooler-weather sleep system and to help keep your sleeping bag clean too.
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Shipping & Returns






Reactor Extreme Liner (adds up to 25°F) - Past Season (Like New)
Reactor Extreme Liner (adds up to 25°F) - Past Season (Like New)
The THERMOLITEĀ® Reactor⢠Extreme liner is Sea to Summitās warmest knitted sleeping bag liner. If your adventures take you to colder climates, the Reactor Extreme will add plenty of warmth to a sleeping bag. Plus in warmer weather, it can be used as a āstand aloneā sleeping bag. The hollow core fibers of the THERMOLITEĀ® fabric work like a polar bear's fur and, along with the knitted structure, trap plenty of insulating air. Super soft and amazingly stretchy, the Reactor Extreme uses a heavier version of THERMOLITEĀ® Ā to provide extra warmth for an incredibly comfortable nightās sleep. Use one to build your cooler-weather sleep system and to help keep your sleeping bag clean too.
Original: $37.48
-65%$37.48
$13.12Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The THERMOLITEĀ® Reactor⢠Extreme liner is Sea to Summitās warmest knitted sleeping bag liner. If your adventures take you to colder climates, the Reactor Extreme will add plenty of warmth to a sleeping bag. Plus in warmer weather, it can be used as a āstand aloneā sleeping bag. The hollow core fibers of the THERMOLITEĀ® fabric work like a polar bear's fur and, along with the knitted structure, trap plenty of insulating air. Super soft and amazingly stretchy, the Reactor Extreme uses a heavier version of THERMOLITEĀ® Ā to provide extra warmth for an incredibly comfortable nightās sleep. Use one to build your cooler-weather sleep system and to help keep your sleeping bag clean too.























