Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner

From the renowned brand Sea to Summit, we present the Sleep Liner series - the perfect solution for enhancing your comfort and hygiene during camping and travel adventures.

Introducing the Thermolite Reactor Extreme Liner, the warmest backpacking sleeping bag liner in our collection. Crafted with ingenious Thermolite hollow fiber technology, this liner effectively traps heat, just like the fur of a polar bear, providing you with added warmth of up to 25°F to your sleeping bag. The mummy shape, drawcord hood with mini cord lock, and the soft, stretchy knit construction ensure a cozy and comfortable sleep, even in the most challenging conditions.

Delving deeper into the Thermolite fabric technology, we have carefully selected the perfect weight for each of our liners. The Reactor Extreme features a heavier 110g/m² Thermolite fabric, ensuring maximum insulation, while the Reactor and Compact Plus liners utilize the 80g/m² and 110g/m² fabrics respectively, providing a range of warmth options to suit your needs.

When it comes to convenience, the Sleep Liners excel. Packed in a compact size similar to a solo red cup and weighing less than a roll of paper towels, these liners are incredibly easy to transport, allowing you to enjoy the added warmth and hygiene benefits without sacrificing valuable space or weight in your pack.

Designed with a passion for functional beauty and a commitment to reliable performance, Sea to Summit's Sleep Liners are the perfect companion for your next camping or travel adventure. Embrace the less-traveled road with confidence, knowing that your sleep system is equipped to keep you cozy and protected, no matter the conditions.

Explore our full range of Sleep Liners, Sleeping Bags, Quilts and Blankets, Sleeping Pads, Camping Pillows, and Dry Bags to build your ultimate sleep system. Visit our store and discover the ingenious, functional, and inspiring equipment that will elevate your outdoor experiences.

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