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The Thermolite? Reactor increases sleeping bag performance by up to 8?C with 80g/m? Thermolite? fabric. ?Our bestselling sleeping bag liner! The Reactor is made from 80g/ m? Thermolite??the lightest weight Thermolite? fabric available. Thermolite? is a hollow core fibre that provides amazing warmth for its weight and remains extremely breathable. The Reactor adds up to 8?C of warmth to a sleeping bag or can be used alone as a warm weather bag.
