The THERMOLITE® Reactor™ Extreme liner is Sea to Summit’s 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 ‘stand alone’ sleeping bag. The hollow core fibers of the THERMOLITE® 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 THERMOLITE® to provide extra warmth for an incredibly comfortable night’s sleep. Use one to build your cooler-weather sleep system and to help keep your sleeping bag clean too.
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Reactor Extreme Liner (adds up to 25°F) - Past Season (Like New)
4.5 (56 items)
Limited Time SaleUntil the end
05
11
40
US$22.49 cheaper than the new price!!
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Used US$14.99
Product details
| Management number | 235387840 | Release Date | 2026/07/02 | List Price | US$14.99 | Model Number | 235387840 | ||
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