Sea To Summit Reactor Lightweight
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Sea To Summit Reactor Lightweight

Thermolite Pro fibre sleeping bag liner, providing an extra 4°C of warmth and protecting your sleeping bag. With openings for the arms.
€51.10

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Availability: In stock & Available in our store

The opinion of Aventure Nordique

The Sea To Summit Reactor Lightweight sleeping bag liner is designed to increase the temperature inside your sleeping bag. Sea To Summit claims it provides an increase in insulation of around +4°C. In our experience, this liner adds around +4°C, which is no small thing in cold weather!


For added versatility and comfort, this Reactor Lightweight sleeping bag features arm slits and a drawcord hood.


The Thermolite Pro fabric used is just as effective as fleece, but has the advantage of being lighter and more compact. This bag replaces the traditional fleece, cotton or silk sleeping bag liner. Ideal for hiking, camping… HeiQ Fresh technology provides long-lasting odour control.

Points to remember

A sleeping bag liner made from Thermolite Pro, with a drawstring at the foot end. The Reactor Lightweight provides an extra 4°C of warmth and protects your sleeping bag.

Technical details

Brand Sea to Summit
Product name Reactor Lightweight
Form Mummy
Fabric Thermolite
Material Thermolite Pro, 100% recycled polyester
Colour Grey
Length User size : S : 170 cm - R : 185 cm - L : 198 cm
Width 55 / 80 cm
Machine washable Oui
Folded 10 x 18 x 10 cm
Weight S : 235 g - R : 255 g - L : 270 g
Warranty 2 years

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