The Thermolite Reactor increases sleeping bag performance by up to 8°C with 80g/m² Thermolite fabric. Our bestselling sleeping bag liner. The Reactor is made from 80g/ m² 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.

• Lighter weight, more packable than fleece
• Mummy shape with a box foot
• Drawcord hood with mini cord lock
• Contrasting color along the top edge makes it easier to find the opening
• Packs into its own Ultra-Sil stuff sack

Specifications

• Shape: Mummy
• Suitability: Cool Weather
• Efficiency: Up to 8^ο C
• Dimensions: 210x90 cm
• Weight: 348 gr