Rivian R1S Cargo Liner (3rd Row Up/Down)

Two configurations: 3rd row folded flat (max cargo) or 3rd row up (cargo behind 3rd row). Most owners buy the larger flat-fold version for road trips. Pet-hair-friendly raised lip prevents spillover.

Quick Answer

Is the Rivian R1S Cargo Liner (3rd Row Up/Down) worth buying in 2026?: Two configurations: 3rd row folded flat (max cargo) or 3rd row up (cargo behind 3rd row). Most owners buy the larger flat-fold version for road trips. Pet-hair-friendly raised lip prevents spillover.

Specifications

material	TPE
configurations	3rd row up + 3rd row down
color	Black

What it is

Two configurations: 3rd row folded flat (max cargo) or 3rd row up (cargo behind 3rd row). Most owners buy the larger flat-fold version for road trips. Pet-hair-friendly raised lip prevents spillover.

Vehicle Fitment

This protection accessory is verified to fit:

Rivian R1S 2022-2024

Always confirm your specific year/trim before purchase — EV body styles change subtly between model years and even mid-year refreshes (e.g. Model 3 Highland, Model Y refresh) can shift fitment.

Why this one

Selection rationale draws from owner-forum consensus (Tesla, Rivian, F-150 Lightning, and Ioniq 5 owner forums), YouTube long-term reviews, and Amazon verified-purchase patterns. We don't claim hands-on testing for every SKU — we claim cross-referenced community signal that this is the recommended pick in its sub-category.

What to watch out for

Year-specific fitment: EV interiors get refreshed mid-generation (Model 3 Highland, Model Y refresh). Buying based on "fits 2020-2024" without checking your VIN's specific build is the #1 return reason on Amazon.
OEM vs aftermarket trade-off: OEM parts (Tesla Shop, Rivian Gear) almost always have better fitment but cost 2-3× more. We typically link the best aftermarket pick on Amazon and note when OEM is materially better.

Last updated: May 2, 2026 · By Ethan Park