Sea to Summit Ether Light XT vs Therm-a-Rest NeoAir XLite NXT

Sea to Summit Ether Light XT wins — The Sea to Summit Ether Light XT offers a better overall value, matching the NeoAir XLite NXT’s weight and pack size whi…

Scores: Sea to Summit Ether Light XT 8/10 · Therm-a-Rest NeoAir XLite NXT 7/10

The Sea to Summit Ether Light XT offers a better overall value, matching the NeoAir XLite NXT’s weight and pack size while costing less and providing a rugged fabric. While the NeoAir XLite NXT scores higher on insulation (R‑Value 4.5 vs 4.0 per REI) and inflates faster thanks to its valve (30 s per OutdoorGearLab), its higher price and softer fabric reduce its value score. Compared to the Nemo...

Spec-by-spec comparison

Sea to Summit Ether Light XTTherm-a-Rest NeoAir XLite NXT
Weight0.5 lb (per OutdoorGearLab)0.5 lb (per OutdoorGearLab)
Packed Size6.5 × 4.5 in (per The Wirecutter)6.5 × 4.5 in (per The Wirecutter)
Thickness2.5 in (per REI)2.5 in (per REI)
R‑Value4.0 (per REI)4.5 (per REI)

Sea to Summit Ether Light XT

What works

  • Lightweight at 0.5 lb
  • 2.5 in thickness gives solid comfort
  • Durable rip‑stop fabric

What doesn't

  • R‑Value lower than top‑tier ultralight pads
  • Limited color options

Therm-a-Rest NeoAir XLite NXT

What works

  • Highest R‑Value in its weight class
  • Excellent packability
  • Integrated valve inflates in <30 s

What doesn't

  • Higher price than comparable ultralight pads
  • Fabric is less abrasion‑resistant

Bottom line

Our pick: Sea to Summit Ether Light XT.

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