The Ether Light XT Extreme is extra thick and exceptionally warm. The XT Air Sprung Cells provide four inches of stability and comfort, while dual-density layers of THERMOLITE® insulation prevent convective heat loss and internal air movement. This results in true four-season performance.

6.2 R-Value is perfect for cold weather adventures.
At four inches thick, Ether Light XT Air Sprung Cells provides a plush sleeping experience.
Dual-density layers of Thermolite® insulation fill the inner space, preventing heat loss due to convection and internal air movement.
Lighter, quieter and durable 30D/40D face fabric with Sea to Summit’s liquid-extruded lamination is extremely reliable.
Quick and easy inflation, deflation and adjustment is made possible by our multi-function valve and supplied Airstream Pump/stuff sack.
Anti-microbial treatment added to the TPU lamination formula prevents internal mold growth.
PillowLock system prevents your Sea to Summit Aeros Pillow from slipping.
Comes with a stuff sack which doubles as a pump, a repair kit with six self-adhesive patches and a spare valve insert.
Airstream Pump/Stuff Sack can be used to inflate Aeros Pillows – turn the inflator bag inside out; the nozzle will fit the mini pillow valve.

BEST USE
Cold Weather Backpacking

COMES WITH
Stuff sack w/ integrated pump, repair kit & Pillow Lock

FABRIC
Durable 30D/40D nylon

R-VALUE
6.2

SEASON RATING
4 Season

SPECIAL
Anti-microbial liquid-extruded TPU lamination to reduce delamination

THICKNESS
4 in / 10 cm

REGULAR
DIMENSIONS - 183 x 55cm
PACKED SIZE - 17.5 x 24cm
STUFF/ PUMP SACK WEIGHT - 62 g
WEIGHT - 720g

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