The Reactor Extreme liner adds an additonal 15°C with its super insulating 110g/m² Thermolite® fabric. The knit fabric is perfect if you are a restless sleeper with a huge stretch to it. The drawcord hood can be cinched down for that extra warmth when you need it.
- Mummy shape with a box foot
- Drawcord hood with mini cord lock
- Packs into its own Ultra-Sil® stuff sack