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Exped Ultra 6.5R 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.

Which is better: the Exped Ultra 6.5R 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 Exped Ultra 6.5R REI Co-op Helix Insulated
US price $199.95 $169
BrandExpedREI Co-op
Released
R value 6.9 4.9
Pad type air air
Weight grams 440
Thickness (cm) 9
Dimensions (cm) 183 x 52 182.88 x 50.8
Packed size (cm) 23 x 11 25.4 x 12.7
Insulation type synthetic-fill reflective-film
Inflation type pump-sack pump-sack
Shell denier 20 30
Shape rectangular mummy

Sources — Exped Ultra 6.5R: exped.com (verified 2026-07-11). REI Co-op Helix Insulated: rei.com (verified 2026-07-11).

What's the difference between the Exped Ultra 6.5R and REI Co-op Helix Insulated?

Where the two actually differ on the specs we track (6 of 10). Matching specs are omitted.

  • R value: Exped Ultra 6.5R 6.9 vs REI Co-op Helix Insulated 4.9
  • Dimensions (cm): Exped Ultra 6.5R 183 x 52 vs REI Co-op Helix Insulated 182.88 x 50.8
  • Packed size (cm): Exped Ultra 6.5R 23 x 11 vs REI Co-op Helix Insulated 25.4 x 12.7
  • Insulation type: Exped Ultra 6.5R synthetic-fill vs REI Co-op Helix Insulated reflective-film
  • Shell denier: Exped Ultra 6.5R 20 vs REI Co-op Helix Insulated 30
  • Shape: Exped Ultra 6.5R rectangular vs REI Co-op Helix Insulated mummy

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