Source-linked specifications for the Therm-a-Rest NeoAir XLite NXT — Large. 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 4.5. 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 25.0 in (64 cm) wide; compare that with the tent's narrowest usable floor width.
Read the exact variant
Large 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 |
|---|---|
| Manufacturer R-value | 4.5 [pad-src-001] |
| R-value test method | ASTM F3340; product-specific edition unspecified [pad-src-084] |
| Construction | air [pad-src-001] |
| Length | 77 in [pad-src-001] |
| Width | 25 in [pad-src-001] |
| Thickness | 3 in [pad-src-001] |
| Weight | 16.9 oz [pad-src-001] |
| Packed length | 11 in [pad-src-001] |
| Packed diameter | 4.6 in [pad-src-001] |
| Top fabric | 30D ripstop HT nylon [pad-src-001] |
| Bottom fabric | 30D ripstop HT nylon [pad-src-001] |
| Valve | WingLock [pad-src-001] |
| Pump included | Yes [pad-src-001] |
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 Therm-a-Rest NeoAir XLite NXT and check the exact size, revision and seller details before ordering.
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Compare a size against its own record. Shared family names do not prove identical weight or dimensions.
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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: packed_weight_g
- Current official table lists Regular at 370 g / 13 oz. Do not merge older 12 oz revisions.
- ASTM method supported by manufacturer product text and/or brand testing policy; no individual laboratory certificate collected.
Where these facts came from
- NeoAir XLite NXT — Therm-a-Rest, accessed 2026-10-30 [pad-src-001]
- The ASTM R-Value Standard: Rating Sleeping Pad Insulation — Therm-a-Rest, accessed 2026-10-30 [pad-src-084]
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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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