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Sea to Summit Ether Light XT Extreme Insulated Air Sleeping Pad - Womens - 2021

Sea to Summit Ether Light XT Extreme Insulated Air Sleeping Pad - Womens
$268.95 - $298.95
Please select options


Next-Level Comfort and Insulaton for outdoor women

Shaped specifically for cold-weather women adventurers, the extra-thick Women's Ether Light Extreme is constructed with additional insulation compared to the unisex model.

The XT Air Sprung Cells provide 4" of stability and comfort, while increased-density dual layers of THERMOLITE® insulation prevent convective heat loss and internal air movement.

Weight: 685 g /24.2 oz
R-Value: 6.3 (4 Season)

The R-Value of 6.3 is tested according to the ASTM F 3340-18 standard.

Extra thick (XT) Air Sprung Cell construction for 4" stable comfort

Dual-density layers of Thermolite® insulation (uprated compared to the unisex model) fill the inner space, preventing heat loss due to convection and internal air movement.

Quick and easy inflation, deflation and adjustment with the multi-function, high flow-rate valve and supplied Airstream™ Pump Sack

Pillow Lock™ attaches an Aeros™ pillow to mat

Lightweight, quiet and grippy 30/40D Nylon face fabric

Repair kit with 3M self-adhesive patches included for puncture repair

Anti-microbial treatment added to the TPU lamination formula prevents internal mold growth

Narrower in the shoulders, wider between the hips and knees. Offers greater comfort and you won't feel the uneven ground beneath you. Perfectly shaped to match our Women's Sleeping Bags.

Best for backpacking in cold weather or winter conditions

Air Sprung Cell construction makes the Ether Light series more stable than other similarly thick air pads for greater comfort

Liquid-extruded lamination forms an extremely reliable airproof barrier. The laminate and RF welds are engineered for years of trouble-free performance.


Regular Long
Dimensions 168 x 55cm 183 x 64cm
66 x 21.7in 72 x 25.2in
Packed Size 17.5 x 24cm 18.5 x 28cm
6.9 x 9.4in 7.3 x 11in
Weight 24.2oz / 685g 30.7oz / 870g
Pump Sack WT 65 g 65 g
2.2 oz 2.3 oz
Thickness 10cm 10cm
4.0in 4.0in



Suitable for backpacking?

Possibly. The Regular weighs 24 ozs / 685 g – a little heavy for warm weather backpacking, but fine for backpack trips in cold-environments.


Warm enough for four-season use?

Absolutely. The tested R-Value of 6.3 and lack of internal air movement (which reduces heat loss) make it perfect for four-season use.


Easy to inflate?

Yes! The supplied stuff sack features an integrated Airstream Pump – just a couple of breaths will inflate the air sleeping mat. No dizziness for you, and practically no condensation moisture inside the air sleeping mat. Genius!


Sea to Summit Ether Light Extreme Women's Sleeping Mat

Featuring a women’s specific shape that is wider at the hip and narrower at the shoulder and an R-value over 6, the 10cm thick Ether Light XT Extreme Insulated Air Mat redefines lightweight sleeping comfort for winter adventures around the globe.

Part Numbers

Option UPC MPN Store SKU
Regular 9327868139385 996 SLE543956801
Long 9327868139392 997 SLE56468721