Best Rivian R1T & R1S Bed and Cargo Accessories (2026)

The Rivian R1T's bed and the R1S's cargo area are two of the best-designed cargo spaces in any EV, but Rivian ships them essentially bare. There's no factory tonneau cover, no bed liner, and no roof rack included — just accessory ports waiting for you to decide what to bolt on. That's a good problem to have, but it means the first few hundred (or thousand) dollars of ownership often goes to figuring out which of the dozens of Rivian-compatible parts on Amazon are actually worth it.

We narrowed it down to six accessories that are genuinely built for the R1T and R1S — not generic truck parts with a Rivian mention buried in the bullet points. Below: which ones fit which model, what they actually protect, and where the real trade-offs are.

One thing worth knowing before you buy anything: the R1T and R1S don't share a parts bin the way most truck-and-SUV siblings from the same brand do. The R1T's bed, bed rail, and Gear Tunnel don't exist on the R1S, and the R1S's finished cargo floor behind the third row has no R1T equivalent. That's why almost everything below is labeled for one model or the other — treat "compatible with Rivian" claims on generic listings with some skepticism until you've checked the fine print against your specific vehicle.

Rivian's own Cargo Crossbars are the one accessory on this list that works across both the R1T and R1S, because they telescope to mount on either the roof or the R1T's bed rail using the factory accessory ports — no drilling, no aftermarket mounting feet guessing at your roofline. At $800 they're the most expensive pick here, but they're also the foundation: every rooftop cargo box, bike rack, or rooftop tent you'd add later needs crossbars first, and these are built to Rivian's own tolerances with Yakima and Kuat mount compatibility already sorted out.

The picks at a glance

Prices move around on Amazon — the table shows what we last recorded, and each "Check price" button takes you to the live listing.

Best tonneau cover: WeatherTech (R1T)

Best tonneau cover — R1T

WeatherTech Roll Up Pickup Truck Bed Cover for R1T - (8RC8015), Black

• Compatible with select 2022-2026 Rivian R1T models. Please confirm fitment to your year, make, and model in Amazon ConfirmedFit prior to purchase.
• Made in USA
• Features AutoLatch II latching system that, paired with a locked tailgate, provides excellent security
• Easy to operate — opens and closes in seconds

Check price on Amazon →$533.95 — price as of 2026-07-21

If you actually use the R1T's bed — hauling gear, groceries, or anything you'd rather not leave exposed — a tonneau cover is the single accessory that pays for itself fastest. WeatherTech's roll-up cover is confirmed-fit for 2022-2026 R1T models and its AutoLatch II system means a locked tailgate is enough to keep the cover, and whatever's under it, secure.

Best bed liner: BestEvMod (R1T)

Best bed liner — R1T

BestEvMod for Rivian R1T Truck Bed Mat Liner Foldable Accessories Pickup Heavyweight Bed Mat All-Weather Protection Compatible with Rivian R1T 2022-2026 Accessories

• Perfect fitment: designed according to 3D laser scan data in 1:1 scale for Gen 1 & Gen 2 Rivian R1T beds, shaped to the contours of the truck
• Premium TPE material: anti-slip, durable, scratch-resistant, and heavy duty
• Easy to install and clean: no tools needed, simply place it in the bed and roll it into position; rinse with water to clean
• Anti-slip texture surface keeps cargo from sliding or scratching the bed liner

Check price on Amazon →$94.99 — price as of 2026-07-21

A bed mat is the cheapest insurance you can buy for the R1T's bed floor. This one is scanned specifically to the truck's contours rather than trimmed from a universal blank, so it actually sits flush instead of sliding around under cargo.

Best budget roof rack: KINGGERI (R1S)

Best budget roof rack — R1S

KINGGERI Lockable 330lbs Roof Rack Cross Bars Compatible with Rivian R1S 2022-2026 (Without Roof Rails), Heavy Duty Anti-Theft Aluminum Roof Rails Crossbars Luggage Cargo Carrier

• Fitment: specifically for Rivian R1S 2022-2026 (not compatible with Rivian R1T)
• Die-cast aluminum brackets and 2mm-thick aluminum bar add extra load capacity and durability versus typical aftermarket bars
• Metal mechanism lock system for anti-theft security; max load capacity 330 lbs (150 kg)
• High-grade aluminum construction resists high/low temperature and corrosion

Check price on Amazon →$159 — price as of 2026-07-21

Not every R1S owner needs an $800 crossbar set, especially if a rooftop cargo bag or a couple of bike trays is the whole plan. KINGGERI's bars mount straight to the bare roof, carry a real 330 lb rating, and cost a fraction of the OEM option — the trade-off is a third-party fit and a shorter warranty.

Also strong

Best cargo net — R1T

Muslogy Truck Bed Cargo Net Trunk Netting Compatible with Rivian R1T 2022-2026 Accessories, Pickup Cargo Organizer Storage Net w/Heavy Duty Carabiners

• Perfect fitment: designed specially for Rivian R1T 2022-2025 to fit the bed precisely
• LockNflex material secures small items and prevents larger items like groceries and tools from rolling while driving
• Premium thumb screws for durability
• Easy to install: remove the original covers to install the mounting bolts

Check price on Amazon →$24.95 — price as of 2026-07-21

Best cargo liner — R1S

LASFIT Trunk Mat & Backrest Mats for Rivian R1S 2022-2024, All Weather TPE Custom Fit Cargo Liner for R1S Cargo Mat, Black, Easy to Clean

• Custom fit: 3D laser scanning technology ensures a precise fit for 2022-2024 Rivian R1S cargo area and backrest
• Firm yet flexible: raised edges all the way around resist curling or buckling over time
• Environmentally friendly elastic TPE material, soft touch, skid-proof and recyclable
• All-weather protection shields the floor from dirt, mud, salt, rain, and snow

Check price on Amazon →$109.99 — price as of 2026-07-21

The Muslogy Cargo Net is a $25 way to stop loose gear from sliding around the R1T's bed on the highway — cheap enough to add regardless of what else you buy, and it installs using the existing bolt covers rather than adding new holes. The LASFIT Trunk Mat & Backrest Mat set does for the R1S's cargo area what the BestEvMod mat does for the R1T's bed: a scanned-to-fit TPE liner with raised edges, so muddy boots, wet gear, and folded-down seatbacks stay protected instead of collecting stains on the factory carpet.

How to choose

• R1T vs R1S first: Confirm your model before anything else — bed liners, tonneau covers, and bed-rail crossbars are R1T-only; cargo liners and most roof-only racks are R1S-only. Only Rivian's own crossbars cross over.
• OEM accessory ports vs bare roof: Rivian's crossbars use the built-in accessory ports and need no other hardware. Third-party bars either need factory roof rails or, like the KINGGERI set, mount straight to a bare roof — check which your bar assumes.
• Load rating: 330 lbs is the common ceiling for aftermarket crossbars here; confirm a rack's rating covers your rooftop box, bikes, or tent before you buy.
• Material for liners and mats: TPE (thermoplastic elastomer) with raised edges is the standard that holds up to years of mud, salt, and gear — look for a "3D scan" or "confirmed fit" claim tied to your specific model year.
• What you're actually protecting: A tonneau cover secures what's in the bed from weather and opportunistic theft; a bed mat or cargo liner just protects the surface underneath. Most R1T owners end up wanting both eventually.
• Buy in the right order: A liner or mat is the cheapest way to stop regretting a scratched factory surface, so it's worth handling first even on a tight budget. Crossbars come next once you know what you're actually planning to carry on the roof — there's no point paying for load capacity you'll never use.

Start with whichever protects what you actually haul — a liner if the bed sees daily wear, a cover if it holds things worth locking down, crossbars if a roof box or bike rack is next on the list. None of these are impulse buys at these prices, but all six are built for the truck and SUV you actually own, not a generic pickup bed that happens to be close enough.