Our most popular sleeping bag liner! The Reactor is made from 80g/m THERMOLITEthe 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 8C of warmth to your sleeping bag or can be used alone as a warm weather bag.

Features

• Thermolite insulation is a hollow-core fiber that provides extraordinary warmth for its weight and remains extremely breathable
• It’s very comfortable, more compact and warmer for its weight than fleece liners
• Adds up to 14F (8C) of warmth to a sleeping bag, or can be used on its own as the ideal warm-weather bag
• Thin drawcord with tiny cord-lock around the hood
• Very light and compact

Technical Specs