Big Agnes
Big Agnes Rapide SL Insulated
$169.95
Best Sleeping Pads · head-to-head
Big Agnes Rapide SL Insulated vs REI Co-op Helix Insulated
A sourced, side-by-side comparison. REI Co-op Helix Insulated is cheaper at $169. Every spec and price links to its source.
REI Co-op
REI Co-op Helix Insulated
$169Cheaper
Which is better: the Big Agnes Rapide SL Insulated or REI Co-op Helix Insulated?
On the specs we track, they're closely matched. The REI Co-op Helix Insulated is the cheaper at $169.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Big Agnes Rapide SL Insulated | REI Co-op Helix Insulated |
|---|---|---|
| US price | $169.95 | $169 |
| Brand | Big Agnes | REI Co-op |
| Released | — | — |
| R value | 4.8 | 4.9 |
| Pad type | air | air |
| Weight grams | — | — |
| Thickness (cm) | 9 | — |
| Dimensions (cm) | — | 182.88 x 50.8 |
| Packed size (cm) | — | 25.4 x 12.7 |
| Insulation type | reflective-film | reflective-film |
| Inflation type | pump-sack | pump-sack |
| Shell denier | — | 30 |
| Shape | rectangular | mummy |
Sources — Big Agnes Rapide SL Insulated: bigagnes.com (verified 2026-07-11). REI Co-op Helix Insulated: rei.com (verified 2026-07-11).
What's the difference between the Big Agnes Rapide SL Insulated and REI Co-op Helix Insulated?
Where the two actually differ on the specs we track (2 of 10). Matching specs are omitted.
- R value: Big Agnes Rapide SL Insulated 4.8 vs REI Co-op Helix Insulated 4.9
- Shape: Big Agnes Rapide SL Insulated rectangular vs REI Co-op Helix Insulated mummy