HEST Foamy for R2 · Foamy for R2 (open)
OfficialPhysically confirmed: fits
Calculated: Likely no
- Dimensions
- 78 × 25 × 3.9 in
- Seats / orientation
- Seats folded · flat on folded rear seats
- Category
- mattress
Rivian Gear Shop lists open size 78 × 25 × 3.9 in and sells it as the R2 cargo mattress. Geometry vs ~75 in community seats-folded length can disagree — trust manufacturer confirmation for this SKU.
Source: Rivian Gear Shop — Hest Foamy for R2 · collection checked 2026-09-15
What actually fits in a Rivian R2?
15 products in one collection (3 with a physical confirmation field). Calculated fit uses the same owner-taped cargo envelope as will-it-fit. Physical confirmation is never inferred from geometry.
Collection (15)
| Product | Dims | Physical | Calculated | Config |
|---|---|---|---|---|
HEST Foamy for R2 Foamy for R2 (open) | 78 × 25 × 3.9 in | Fits | Likely no | Seats folded |
Tall large-breed travel crate (GSD use-case) Generic tall crate needing >29 in hatch clearance | — × — × 29 in | No | No full L×W×H | Seats up |
Jeep WeatherTech cargo mat (footprint check) Existing Jeep mat measured against R2 floor | 36 × 41 × — in | Unclear | No full L×W×H | Seats up |
RuffLand Performance Kennel Medium | 27.625 × 18 × 20.75 in | — | Likely fits | Either config |
RuffLand Performance Kennel Large | 35 × 22 × 27 in | — | Likely fits | Either config |
RuffLand Performance Kennel X-Large | 40.25 × 23 × 29.5 in | — | Likely fits | Either config |
Thule Allax M (advertised max depth) | 35.4 × 25.6 × 25.6 in | — | Likely fits | Either config |
Thule Allax L (advertised max depth) | 41.3 × 27.6 × 27.2 in | — | Likely fits | Either config |
~45 qt cooler (typical envelope) Category typical | 26 × 16 × 17 in | — | Likely fits | Seats up |
~65 qt cooler (typical envelope) Category typical | 31 × 17.5 × 19 in | — | Likely fits | Seats up |
Mountain bike (boxed envelope) Typical shipping box | 68 × 9 × 42 in | — | Likely no | Seats folded |
Road bike (boxed envelope) Typical shipping box | 58 × 8 × 40 in | — | Likely fits | Seats folded |
Golf bag with clubs Typical | 50 × 14 × 12 in | — | Likely fits | Seats folded |
Twin mattress (US standard) Typical 75 × 38 × 8 | 75 × 38 × 8 in | — | Likely fits | Seats folded |
Queen mattress (US standard) Typical 80 × 60 × 8 | 80 × 60 × 8 in | — | Likely no | Seats folded |
Two axes on purpose
- Physical — owner report or manufacturer R2 SKU. Never filled in from the calculator.
- Calculated — rectangular box vs community cargo inches (~36 / ~75 length, ~41 wheel wells, ~31 height, ~29 hatch). Same engine as will-it-fit.
Related: camping / sleeping · measurement dataset
