Source-linked specifications for the Sea to Summit Ether Light XR Pro Insulated — Large Rectangular. This is a detailed sleeping pads record, checked on 2026-10-30; price and live stock are not verified.
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What the specs mean
The listed R-value is 7.4. Check its stated test method: ASTM F3340 values are useful for comparing insulation under controlled conditions, not a guaranteed temperature limit. Thickness describes cushioning and cannot substitute for R-value. This version is listed at 25.2 in (64 cm) wide; compare that with the tent's narrowest usable floor width.
Read the exact variant
Large Rectangular is the recorded option. Other sizes or revisions may have different dimensions, weight, or test labels.
Reported specifications
Unit conversions are calculated from the source value. Open the source tag for the originally published number.
| Specification | Manufacturer or retailer value |
|---|---|
| Packed weight | 30.0 oz [pad-src-012] |
| Shape | rectangular [pad-src-012] |
| Manufacturer R-value | 7.4 [pad-src-012] |
| R-value test method | ASTM F3340; product-specific edition unspecified [pad-src-087] |
| Construction | air [pad-src-012] |
| Weight | 27.9 oz [pad-src-012] |
| Thickness cm | 3.9 in [pad-src-012] |
| Top fabric | nylon [pad-src-012] |
| Pump included | Yes [pad-src-012] |
| Length cm | 78.0 in [pad-src-012] |
| Width cm | 25.2 in [pad-src-012] |
| Packed length cm | 9.4 in [pad-src-012] |
| Packed diameter cm | 5.3 in [pad-src-012] |
A blank or unverified value means the dataset cannot support a number; it does not mean zero. Each source tag opens the record used for that field.
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Search for Sea to Summit Ether Light XR Pro Insulated and check the exact size, revision and seller details before ordering.
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Verification limits
Evidence basis: manufacturer_declared. US market: confirmed. Listing status: listed. These labels do not establish current stock.
Unverified fields: See blank fields in the source data.
- ASTM method supported by manufacturer product text and/or brand testing policy; no individual laboratory certificate collected.
Where these facts came from
- Ether Light XR Pro Insulated — Sea to Summit, accessed 2026-10-30 [pad-src-012]
- Making sure your sleeping pad is warm enough - ASTM testing — Sea to Summit, accessed 2026-10-30 [pad-src-087]
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Questions to ask before buying
Is the listed price current?
No price or live stock data is included. Use the official product link for the current listing.
Does a nominal capacity or temperature label guarantee fit or warmth?
No. Compare exact dimensions and tested values where available, then allow for real-world conditions.
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