Therm-a-Rest NeoAir XTherm NXT.
R-value 7.3 in a 15.5 oz package. ThermaCapture reflective barriers and Triangular Core Matrix baffles for four-season warmth.
The Verdict.
Gavler Meta-Score
“The four-season ultralight pad standard. R-value 7.3 at 15.5 oz handles sub-zero conditions. The right pick for winter camping, mountaineering, and high-altitude cold.”
The Gavler Verdict
Precision Engineering
ThermaCapture Reflective Barriers
Multiple reflective layers trap radiant heat — R-value 7.3 without heavy insulation.
70D Bottom Fabric
More durable than the XLite NXT for rough winter surfaces.
15.5 oz
Only 3 oz heavier than the XLite NXT with 65% more insulation value.
Technical Specifications
The Scoreboard
Best-in-class warmth-to-weight. Overkill for three-season-only use — the XLite NXT is the better pick for most backpackers.
Cast Your Vote
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Best Price Availability.
Prices checked April 2026
Price History
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$250
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Global Critique
“Warmest ultralight pad in production. The ThermaCapture technology is measurably effective.”
“The only UL pad I trust for sub-zero nights. R-value 7.3 is real.”
“Overkill for summer but essential for winter. The 70D bottom is a welcome durability upgrade.”
“The default four-season UL pad — nothing else clears the sub-zero bar at this weight.”
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