Finally, somewhere to put your drink, wherever you land today.
4.9 from 119 Steadi reviewsA flexible-finned base that rides in the bag and holds your drink steady on whatever you're sitting on today — the bleacher plank, the picnic blanket, the hotel nightstand, the passenger seat. Nothing to clamp, nothing to match — just the seat you're already in.
Get one for everywhere you sit — from $14.95Fits the 40 oz Stanley down to a Solo cup. Ships free. 90 days to prove it wherever you take it.
Will today's cup fit in the bag? A sticky note answers it — the test is below ↓
Scenes you'll recognize
A different seat every day this week, and you know all of them.
The laptop's open on the duvet and the lobby tea is balanced in the dent the comforter makes next to your hip. The nightstand's on the far side, under the lamp and your own charger. You shift one leg to get comfortable and the whole surface under the cup moves with you.
The drive-through coffee goes on the plank between your feet, because there's nowhere else for it. First good play of the game, the whole row stands and stomps, and the cup either rolls off the ten-inch board or drops straight through the gap onto the family in row two.
You lean over to grab the chips and your knee pulls the blanket taut. The seltzer standing at the far corner — the one nobody's even touched — leans, holds for a second, and goes over into the bag of chips you were reaching for.
Both console holders are already claimed — the driver's coffee, a phone. Your drink rides the passenger seat, aimed at the footwell by the cushion's own contour, and the next hard brake finishes what the seat started. Worse when it's a stranger's car and the spill becomes someone else's cleaning bill.
The crowd's up and shuffling in the half-dark. The can you set down at the edge of the blanket — because the blanket itself never had a flat spot to offer — gets found by someone's shoe before you get back to it.
The short version
Three reasons it earns a spot in the bag.
Holds steady on ground that never does
Bleachers, blanket, mattress, back seat — every surface in this kit moves, sags, or tilts, and that's exactly the terrain the wide, low base is built for. It spreads across soft or uneven ground instead of pushing a point into it, and the fins keep the drink from shifting loose when the seat under it does.
Grips whatever's actually in the bag
The lobby coffee, the tallboy, the Quencher, the bare can straight from the cooler — the fins drop around the bottom inch of whatever you're carrying that day and hold it there. No single-can sleeve to outgrow, no adapter to remember to bring.
Packs flat, needs nothing to match
No rail to measure, no console to fit into, no stake for the ground. One flat piece that folds into the day bag next to the phone charger and works the same on the next seat as it did on the last one.
Will mine fit
The bottom inch decides what rides along.
One line covers all of it: a container base 2 to 3 inches across settles in, on any surface in this kit. Every verdict below follows from that.
- Stanley Quencher-style 40 oz tumbler fits
- Drive-thru or hotel-lobby coffee cup fits
- Slim hard-seltzer can fits
- Standard 12 oz can, bare fits
- Standard 12 oz can, koozied too wide
- Insulated water bottle fits
- Red Solo cup fits
- Hotel bathroom glass or plastic cup fits
- Handled travel mug handle in the way
There's a floor as well as a ceiling — under 2 inches the base sits too loose to grip. The koozie is the honest surprise: it adds real girth for insulation, and that girth is what pushes a can past the top of the range. And the handled travel mug is the same exception campers already know from their chair: the base fits, but the handle is exactly where a fin needs room to close.
The full fit database — Stanley, Red Bull, Yeti, and 30 more, with sourced base measurements →
Fit, the easy way
The whole fit test travels in the bag with it.
lands in here
A square sticky note: 3 inches, exactly — the same ceiling wherever you're sitting.
The classic square is exactly 3 inches on a side — that's a fact about sticky notes, and it happens to be the exact ceiling of what fits.
Tailgate, bleachers, hotel desk — doesn't matter which. Look at the bottom of the cup, not the rim; tumblers taper and cups flare, so the base is the only measurement that counts.
Base sits inside the square? It fits. Hangs over the edges? Too wide. A tiny puck lost in the middle — under 2 inches? Too narrow.
No ruler at the tailgate, no spec sheet on the bleachers. One sticky note riding in the same bag as everything else, one glance, with whatever you actually brought today.
Compared to the workarounds
Compared to everything you've already tried to carry.
| The camp chair's mesh cup holder | The Portable Cup Holder | |
|---|---|---|
| Comes to the bleachers, the blanket, the car | Sewn into one chair, stays behind | Packed in the bag, comes everywhere |
| Takes today's drink as it comes | One sleeve size, wide tumblers don't fit | Fins flex to whatever's in your hand |
| When the row stands and stomps | Sags, some won't hold once you're up | Sits on the plank, holds steady |
| No chair at all — the blanket, the bed | Nothing there to sew it into | Sits on top, no chair required |
| When the chair folds shut | Folds shut, drink still inside | Nothing to fold, nothing to trap |
| Getting it into the bag | Already there, nothing to pack | One flat piece, packs next to the charger |
| Cost | Comes free, already stitched to the chair | One small piece, a separate purchase |
It's the default because it's already sewn in — but reviewers and gear testers report the same trio: mesh sags under anything wider or heavier than a 12 oz can, wide insulated tumblers don't fit the sleeve at all, and some holders won't keep a drink upright once you stand up. Fold the chair with a drink still in it and it goes over.
Sellers of the popular stake designs qualify their own claim to soft ground — hard-baked summer lawns refuse the spike, loose soil lets it lean, and it does nothing at all on artificial turf, asphalt, or a bleacher plank. It's also one more pointed thing riding in the bag, good for exactly one drink.
Every clamp needs a rail or tube it's sized for, and listings tell buyers to measure before ordering because the fit is that specific. Reviewers note the grip loosens as chair legs settle on a slope, and the holder is never more stable than whatever it's bolted to.
A real market exists for stretching a console holder around a bigger tumbler — but it solves exactly one seat. The moment the drink leaves the car for the bleachers or the blanket, the adapter stays behind in the console it lives in.
Reviewers of ballpark and stadium seat cushions report the same complaint: the holder's too shallow and lets a narrow bottle tip the moment someone bumps it. And the cushion itself is a second bulky thing to carry, built for one venue and useless everywhere else in the kit.
Why more than one
Two Identical Tumblers. One Question, Every Row.
At the tailgate, on the bleachers, in the third row of camp chairs — every cooler produces the same six identical tumblers, and by halftime nobody remembers whose is whose. A matching lid makes the mix-up worse, not better, because the one clue that used to work — 'mine's the one on the left' — stops meaning anything the second everyone gets up.
Build your set
Give everyone their own.
Pick a pack, then give each one a color — so nobody has to ask which drink is theirs.
From the reviews
What buyers say.
Recent reviews of the Steadi, from every room and rig it lives in.
I have a tendency to spill my drinks and have two cats. This is one of the best things I’ve ever impulse bought. It works. It actually works. It’s a heavy, wide enough base that it is actually stable. My “spot” in the living room is near a somewhat-cushioned fabric ottoman, which is where I usually put my drinks. It’s
Dixie · 2026-08-30I love mine. I just wish the price was more appropriate. $15 seems a lot for a small plastic item. Reduce it to $9.99 and free shipping and I'll buy a few more!
Carolyn G. · 2026-08-27Excellent!
Brian S. · 2026-08-27Thank you for your service!
Brian S. · 2026-08-27It’s great love it
gilbert a. · 2026-08-24I never knock over my water at night anymore!
Customer · 2026-08-21All 119 reviews are for the drink base itself, collected across every place people use it.
Fair questions
You're probably thinking…
The demo isn't a studio table shot — it's the same base riding out a hard brake in a real car, a stomp on a real bleacher plank, a knee hitting a real blanket. The reviews on this page name the actual scene someone used it in, not just 'works great.' And if it doesn't earn a permanent spot in your bag, you've got 90 days to send it back.
It fits, plainly — the 40 oz Stanley Quencher's base lands right in range. Don't take that on faith: grab a sticky note, stand your own cup on it, and check the base against the 3-inch square before you spend anything.
That one covers exactly one seat. The mesh sleeve sags the moment a wide tumbler goes in it and folds shut with the drink still inside when the chair does; the console's usually already claimed by the driver. This is for the bleacher plank, the blanket, and the hotel nightstand — the seats that never had a holder to begin with.
It's flat enough to sit next to the phone charger in the bag you're already carrying — meant to replace the stake, the clamp, and the sagging mesh sleeve you've half-heartedly tried instead, not add to the pile.
It's not solving one Saturday — it's the same small fight showing up in a different seat most weeks: the bleachers, the car, the hotel room. Priced against how often it actually happens, not against one occasion, and the per-unit price drops further the more seats it ends up covering.
Before you buy
Asked from every seat, answered here.
Does it actually work on a bleacher plank?
That's exactly the surface it's built for. The wide, low base spreads across the 10-inch board instead of balancing a point on it, and the fins keep the drink from rolling when the row stands up. Nothing about it needs the plank to be flat, because it isn't.
What about a blanket on grass — that seems like the hardest case.
It's close to the hardest case, and it's still the design brief. The base is wide enough to bridge the slack instead of sinking into it, and it settles back down after a knee lands nearby and re-tensions the fabric.
Will my tumbler fit?
Check the base it stands on, not the rim it drinks from — tumblers taper. Anything landing 2 to 3 inches across settles in, which covers the 40 oz Stanley. A handled travel mug is the one exception in the bag: the base fits, the handle doesn't.
Does it clamp onto a chair arm, a bleacher rail, or the car console?
No — nothing clamps, straps, or stakes into anything. It sits on top of whatever you're already sitting on and moves with you to the next one.
Will it fit in my bag?
It's flat and light enough for the same bag that already carries the phone charger and the sunscreen — clear-bag stadium policies included, since it isn't rigid or bulky enough to give security a reason to look twice.
Can I use it in the car too?
Yes, though the built-in console holders usually have the driver's seat covered already. It earns its keep more on the passenger seat, where the cushion aims anything you set down straight at the footwell.
I'm in someone else's car or hotel room a lot — does a spill matter more there?
It does. A rideshare spill commonly costs a real cleaning fee, and hotel bedding that gets soaked is out of service for the night. This resists tipping and settles back when it's bumped, which matters more exactly when the mess wouldn't be yours to clean up.
How do I clean it?
Rinse it or wipe it down between trips, or put it in the dishwasher. It's one piece of flexible material with nothing to unscrew or take apart.
Who makes it, and where do I buy one?
It's called the Steadi, molded in small runs in Orange, California by Steadi Labs. Every order ships free from steadilabs.com, with 90 days to send it back if it doesn't earn a permanent spot in the bag.
Ninety days, every seat you try.
Take it everywhere for a month — the bleachers, the blanket, the passenger seat, wherever you land next. If it doesn't do what this page says, email hello@steadilabs.com and it gets made right. No forms, no fight.
Veteran-founded · Patent pending · Made in Orange, California
From
Molded in one spot, then it goes everywhere.
The maker is Steadi Labs, a small veteran-founded company in Orange, California. It's injection molded in small runs — nothing about it travels far before it ships to yours: the mold, the material, and the color runs all sit within about three and a half miles of the shop. Got a question about the one you're packing? The people who make it read hello@steadilabs.com themselves.
One flat spot, wherever you sit down.
The drink stands wherever the day parks you — bleachers, blanket, back seat, or the wrong side of a hotel bed — and it folds flat and rides home in the same bag it came in.
Add it to the bag — ships freeCheckout happens at steadilabs.com — Steadi Labs is the company that makes it.