The latest iteration of the Sea to Summit Ether Light range is the XR Insulated ASC Sleeping Mat. Bringing a series of refinements that improve warmth and packability from the previous Ether Light XT.
The most significant change is the shift from down insulation to the new Thermal Core insulation, which uses multiple layers to reflect body heat while reducing air movement inside the mat, increasing thermal efficiency.
With an R-value of 4.5, this mat is capable of year-round use, providing enough insulation for cold conditions while remaining light enough for milder weather. While true winter expeditions may require additional insulation, it’s... Keep reading here.
Ether Light XR Pro
Building on the strengths of its predecessor (Ether Light XT Extreme) the Sea to Summit Ether Light XR Pro Insulated ASC Sleeping Mat delivers a notable upgrade in design and functionality for cold-weather camping. A key improvement is its impressive R-value of 7.4... Read more here.
The competition starts on 1st April 2025 and ends on 30th April 2025. All entrants between these dates will be entered into the draw. The winner will be drawn on 1st May 2025, and the winner will be notified via email. If you don't get an email from us, unfortunately, you have not been successful on this occasion.
Every correct entry submitted between the competition dates will have their email address entered into the draw. The draw will be made using a random number generator and will be completely fair, each email address will have the same chance to win as any other. Only one entry per person will be accepted. No dialogue will be entered about the administration of the competition/draw.
If you purchase one of the prize items and then win the competition, you are entitled to a refund of the cost of the item!
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