Sea to Summit Lightweight Thermolite Mummy Liner
Increase the warmth of your sleeping bag and your sleeping comfort.
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.
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Product Specific FAQs
Delivery & Tracking
When will it be delivered?
How are your items sent
( In some circumstances we may use other carriers, depending on the destination and product )
Is there tracking on my order?
Tracking usually comes live during the evening of the day of despatch of your order
Do you ship outside of the UK
Overseas shipping will vary depending on location, weight, and service available.
Delivery times for overseas orders can vary considerably depending on location, please get in touch if
you need details of delivery options by emailing [email protected] and giving us your address,
including country and Post or Zip code