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.
- Length: 84 in
- Width: 36 in
- Weight: 14 oz/399g
- Temp Rating: Up to 25 F /Up to 14 C
- Color: Orange