Sea to Summit
Sea to Summit Ether Light XT Insulated
$199Cheaper
Best Sleeping Pads · head-to-head
Sea to Summit Ether Light XT Insulated vs Exped Ultra 6.5R
A sourced, side-by-side comparison. Sea to Summit Ether Light XT Insulated is cheaper at $199. Every spec and price links to its source.
Exped
Exped Ultra 6.5R
$199.95
Which is better: the Sea to Summit Ether Light XT Insulated or Exped Ultra 6.5R?
On the specs we track, they're closely matched. The Sea to Summit Ether Light XT Insulated is the cheaper at $199.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Sea to Summit Ether Light XT Insulated | Exped Ultra 6.5R |
|---|---|---|
| US price | $199 | $199.95 |
| Brand | Sea to Summit | Exped |
| Released | — | — |
| R value | 3.2 | 6.9 |
| Pad type | air | air |
| Weight grams | 490 | 440 |
| Thickness (cm) | 10 | 9 |
| Dimensions (cm) | 183 x 55 | 183 x 52 |
| Packed size (cm) | 24 x 11 | 23 x 11 |
| Insulation type | synthetic-fill | synthetic-fill |
| Inflation type | pump-sack | pump-sack |
| Shell denier | 30 | 20 |
| Shape | mummy | rectangular |
Sources — Sea to Summit Ether Light XT Insulated: seatosummit.com (verified 2026-07-11). Exped Ultra 6.5R: exped.com (verified 2026-07-11).
What's the difference between the Sea to Summit Ether Light XT Insulated and Exped Ultra 6.5R?
Where the two actually differ on the specs we track (7 of 10). Matching specs are omitted.
- R value: Sea to Summit Ether Light XT Insulated 3.2 vs Exped Ultra 6.5R 6.9
- Weight grams: Sea to Summit Ether Light XT Insulated 490 vs Exped Ultra 6.5R 440
- Thickness (cm): Sea to Summit Ether Light XT Insulated 10 vs Exped Ultra 6.5R 9
- Dimensions (cm): Sea to Summit Ether Light XT Insulated 183 x 55 vs Exped Ultra 6.5R 183 x 52
- Packed size (cm): Sea to Summit Ether Light XT Insulated 24 x 11 vs Exped Ultra 6.5R 23 x 11
- Shell denier: Sea to Summit Ether Light XT Insulated 30 vs Exped Ultra 6.5R 20
- Shape: Sea to Summit Ether Light XT Insulated mummy vs Exped Ultra 6.5R rectangular