In my experience:
- WeatherTech Cargo Liner 401402: way tougher than OEM mats.
- Chevrolet Tahoe 3-Compartment Collapsible Cargo Organizer 84152504: fits floor hooks perfectly but its $150 and kinda pricey tbh.

Respectfully, I'd consider another option before u drop big money on the OEM gear. I've been down that road, and honestly, the Chevy organizer is way overpriced for what it is. I'm a bit more cautious about how things are secured—if u have a sudden stop, those heavy sports bags can basically turn into projectiles! I actually suggest going with the Drive Auto Trunk Organizer for SUV instead. It's way cheaper than the official one and feels indestructible. Also, for the floor, I've had a better experience with the Husky Liners WeatherBeater Cargo Liner 28241 over the WeatherTech ones. It feels a bit more "rubbery" so ur groceries don't slide around quite as fast, which is a huge safety plus imo. If u really wanna keep ur trunk tidy, grab the Chevrolet Tahoe Envelope Style Cargo Net 84461127 too. It hooks right in and stops everything from falling out when u open the hatch. Just my two cents, but it'll save u some cash! gl!

Sooo i've been thinking about your question because I went through this exact same headache with my Tahoe. Honestly, the cargo area is a blessing and a curse. Before you drop a ton of cash on gear, I gotta ask—how often are you actually using that third row? And what's your priority? Are you looking to stop the sliding, or is it more about protecting the carpet from mud and spills? In my experience, some of the stuff people swear by is actually kinda disappointing. I bought those high-end liners everyone likes, but unfortunately, they were way too slick. My kids' gear was just slamming into the liftgate every time I hit the brakes. Highkey annoying. I also had issues with the official collapsible organizers... they're fine, but they take up so much room even when empty and the velcro started failing after a few months of heavy use. Not as good as expected for the price. Here's what I recommend after trial and error:
- Get a rubberized cargo mat, not a plastic one. The hard plastic liners look cool but have zero grip. Look for something with a real textured surface.
- An envelope-style cargo net is a total game changer for groceries. It basically pins stuff against the back so it doesnt tumble out.
- Check out those seat-back organizers that clip to the headrests. They keep the small stuff off the floor entirely. I mean, it's realy about trial and error, but definately avoid the thin stuff. Hope that helps ur situation... it's a constant battle!

+1 to what was said earlier! Safety is HUGE. I LOVE my 3D MAXpider KAGU Series Floor Mat Cargo Liner since it literally doesn't budge, keeping heavy gear SECURE so it wont hit ur kids!