Sea to Summit Thermolite Mummy Liner
Sea to Summit

Sea to Summit Lightweight Thermolite Mummy Liner

Increase the warmth of your sleeping bag and your sleeping comfort.

Now £44.99£50.00 Save £5.01

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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Delivery & Tracking

When will it be delivered?

We aim to ship all orders that we receive by 3 pm UK time between Monday to Friday

How are your items sent

Our main UK Shipping option is with Royal Mail Tracked service
( In some circumstances we may use other carriers, depending on the destination and product )

Is there tracking on my order?

Yes, tracking numbers are sent when the order despatch confirmation is sent, and they have a link to your tracking service
Tracking usually comes live during the evening of the day of despatch of your order

Do you ship outside of the UK

Yes we do.
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 info@extremeadventureraces.com and giving us your address,
including country and Post or Zip code