Sea to Summit Ether Light XT Insulated Large Mattress
SEA TO SUMMIT · 490 g / R-Value: 3.2
-20% EXTRA on ALL outdoor universes. Code: GO20
Offer valid on all outdoor universes from April 2 to April 10. Not appliable on a few specific brands.
- −15%
GO20
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Order before 2 PM tomorrow you will be delivered on 10/04 or 11/04 at the latest (France only).

Option to pay in 4 installments
(4 payments of
CHF 49 25
for this product).
Statut obtained by SEA TO SUMMIT at the Muule barometer

The SEA TO SUMMIT Ether Light XT mattress has been designed specifically for hikers sleeping on their side, thanks to the additional thickness (10 cm) allowing your hip to sink into the mattress without touching the ground.
This mattress features “Air Sprung Cell™” technology which creates larger capacity air cells thanks to the TPU mesh partitions. This mesh partition design allows the two sides of the mattress to be better separated, creating larger air pockets once inflated while using less fabric.
It is offered here in a Large version with a length of 198 cm.
- Comfort
- Space requirement
- Insulation
- Lightness