Best Rivian R1S Accessories for 2026
The R1S is Rivian's three-row adventure SUV — a cavernous dual-layer frunk, underfloor storage, a huge fixed glass roof, height-adjustable air suspension with genuine off-road ability, in-cabin power, and Camp Mode. Unlike the R1T truck, the R1S has no gear tunnel, but between the frunk, the underfloor bin, and a big rear cargo hold there's a lot of surface to protect — and R1S owners tend to spend to keep an expensive, well-used SUV clean. Here's the gear that matters, each with a full buyer's guide, plus the model-specific pieces worth buying by name.
The accessories that matter for the Rivian R1S
Model-specific gear worth buying
Team 1EV Precision-Fit Floor & Cargo Mats (R1S)
CNC-cut carpet/rubber mats laser-fit to the R1S, covering all three rows and the cargo floor.
Check price on AmazonBestEvMod Frunk Mat, Upper + Lower (R1S)
Two-piece TPE liner for the R1S's dual-layer front trunk, with raised lips and a drain hole so you can hose it out.
Check price on AmazonAll-Weather Rear Cargo Liner (R1S)
Waterproof liner with high walls for the big rear cargo hold — recovery gear, coolers, and wet dogs.
Check price on AmazonR1S Glass-Roof Sunshade
Clip-in shade that blocks the bulk of solar heat through the panoramic roof; stows small when not in use.
Check price on AmazonR1S fit notes
No gear tunnel — but huge storage. The gear tunnel is unique to the R1T truck; the R1S instead gives you a big dual-layer frunk, an underfloor bin, and a large rear cargo area, all worth lining. Charging: the R1S uses CCS natively; Rivian's NACS adapter opens Tesla Superchargers, and at home its large battery rewards a fast 48A Level 2 charger. In-cabin power and Camp Mode make it a basecamp on wheels. Off-road airdown: a portable compressor to re-inflate tires is a first buy. The large fixed glass roof heats the cabin — a sunshade is genuinely worth it.
Frequently asked questions
Q: Does the R1S have a gear tunnel like the R1T?
A: No — the gear tunnel is exclusive to the R1T truck. The R1S makes up for it with a large dual-layer frunk, an underfloor storage bin, and a big rear cargo area.
Q: Can the R1S charge at Tesla Superchargers?
A: Yes, with Rivian's NACS adapter (the R1S's native port is CCS). At home, go with a fast 48A Level 2 charger to keep up with the big battery.
Q: What's the best first upgrade?
A: All-weather floor mats plus an upper/lower frunk liner and a rear cargo liner — the R1S's whole appeal is getting dirty, so protect the surfaces first.
Q: Is a glass-roof sunshade worth it?
A: Yes — the R1S's large fixed glass roof heats the cabin noticeably, and a clip-in shade cuts heat and AC drain on hot days.