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The ultimate solution to extending the warmth of your sleeping bag, the Sea to Summit Thermolite Extreme Reactor Liner increases comfort without adding excessive weight and bulk to your adventure kit.
Made with 110g/m2 Thermolite® fabric, the Thermoilite Extreme has a spacious design and stretchy fabric to cater for tall and restless sleepers and a drawcord hood to really trap the warmth when the mercury goes south.
The liner also increases the life of your sleeping bag as they are much easier to throw in the washing machine than your expensive technical sleeping bag.
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