Sea To Summit Reactor Extreme Thermolite Sleeping Bag Liner
The Reactor Extreme Sleeping Bag Liner increases sleeping bag performance by up to 25°F with super-insulating 110g/m. sq. Thermolite fabric. Thermolite is a hollow core fiber that provides extraordinary warmth for its weight and remains extremely breathable. Reactor liner’s spacious design allows for a comfortable night’s sleep, even when the mercury plummets. Perfect for extending the season of your sleeping bag.
Reactor Extreme Thermolite Sleeping Bag Liner Features:
• 110g/m. sq. Thermolite construction throughout
• Adds up to 25°F (14°C) of warmth to a sleeping bag
• Mummy shape with a box foot
• Drawcord hood with mini cord lock
• Packs into its own Ultra-Sil stuff sack
• Color of liner is orange
• Weighs 14 oz./399g
• Dimensions: 84″ x 36″
Before You Order
Check the 84 by 36 inch dimensions, orange color and mummy shape against your sleeping bag before ordering; listed part number is 149.
Frequently Asked Questions
How much warmth can the liner add?
The product description says it adds up to 25 degrees Fahrenheit to a sleeping bag.




