Sea To Summit Thermolite Reactor Extreme Liner -Increases sleeping bag performance by up to 25 F (14 C) with super-insulating 110g/m Thermolite fabric. Thermolite is a hollow core fiber that provides extraordinary warmth for its weight and remains extremely breathable. Spacious design allows for a comfortable night's sleep, even when the mercury plummets. Perfect for extending the season of your sleeping bag.
- Size: 84" x 36"
- Weight: 14 oz
- Temp Rating: Up to 25° F
- Mummy shape with a box foot
- Draw cord hood with mini cord lock
- Packs into its own Ultra-Sil stuff sack
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