
Sea to Summit Reactor Fleece Sleeping Bag Liner - Thermolite Pro Grid Fleece with Drawcord Footbox and Shoulder Zips for Maximum Warmth, Versatile Use, and Cold-Weather Performance
- Ridge & River$94.95Buy
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From Ridge & River
Built for serious cold-weather performance the Sea to Summit Reactor Fleece Sleeping Bag Liner is the warmest liner in the Reactor series. Constructed with grid-patterned hollow-core Thermolite Pro fibers this fleece liner adds substantial insulation to your sleep system-ideal as a core component for extreme conditions or as a lightweight standalone bag in warm climates. The mummy-shaped design maximizes heat retention while shoulder zippers and a drawcord footbox give you versatile temperature regulation. Whether you&';re layering up for alpine expeditions or sleeping under the stars during milder nights this liner keeps you comfortable and adaptable.