Sea to Summit Thermolite Reactor Fleece


Compact fleece sleeping bag liner from the Sea to Summit Thermolite range.

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Add warmth to your sleeping bag or use this fleece thermolite liner as a stand alone summer sleeping bag. The Sea to Summit Thermolite fleece liner is designed for a variety of activities and conditions, making it a great choice of sleeping gear for your next adventure! Constructed from a lightweight Thermolite fleece material, this liner is designed to trap air inside its fibres to help retain warmth and keep you nice and cosy during the night.

The Thermolite fleece liner is the warmest in Sea to Summit’s Thermolite range and adds warmth to your sleeping bag, as well as keeping it clean. If you’re using the liner in warmer conditions, you can use it as a summer sleeping bag. The fleece liner includes an adjustable draw cord hood and has a quarter zip closure. Packing down to 19 x 13cm in size and weighing a lightweight 379g, this liner is much smaller than other fleece liners and is also warmer!

Additional information

Weight 379 g

200 x 70cm

Pack Size

19 x 13cm


Sea to Summit