The water bottle that folds down and goes anywhere
A 17 oz silicone bottle that collapses from 8.3 in to 4.5 in when empty. Leak-proof, BPA-free, and it clips right to your bag. Full when you need it, flat when you don't.
Your color: Slate
🔥 Selling fast — limited stock
Rigid bottles take up room you don't have
Everyone knows the feeling: you finish your water, and now you're carrying an empty, rigid bottle that bumps around your bag for the rest of the day. On a flight, a hike, or a gym run, that dead weight and bulk is exactly what you don't want. So most people just buy another single-use plastic bottle instead — again.
A silicone collapsible bottle fixes that. Full, it behaves like any good bottle: leak-proof cap, easy grip, fits a cup holder. Empty, you twist and press it down accordion-style until it's a fraction of its height, clip it to your bag with the built-in carabiner, and forget it's there. It's the same idea as a packable jacket — full capability, almost no footprint.
Full-size when you need it, flat when you don't
Folds from 8.3 in down to 4.5 in
Twist and press the silicone body down and it collapses flat — then clips to your bag with the carabiner.
No more empty bottle rattling around your backpack. Collapse it after your last sip and it slips into a pocket or side sleeve, ready for the next refill.
Leak-proof, BPA-free
The stainless-steel screw cap seals tight, and the food-grade silicone is BPA-free and taste-free.
Toss it in your bag next to your laptop without a second thought. The silicone doesn't hold onto flavors or smells the way cheap plastic bottles do.
One bottle, not fifty
Refill it instead of buying single-use plastic — it packs so small there's no excuse to leave it home.
Because it disappears into your bag when empty, you actually keep it with you. That's the whole trick to cutting down on throwaway bottles: always having yours on hand.
Full, then flat, in one twist
We measured it ourselves so you know exactly what you're getting — full height, collapsed height, and capacity.
| State | What it does | Best for |
|---|---|---|
| Full | Stands tall, holds 17 oz, fits a cup holder | The gym, the desk, the trail |
| Collapsed | Presses down to 4.5 in, from 8.3 in | Packing it away, clipping to a bag |
| Cap | Stainless steel, leak-proof screw seal | Tossing it in a bag safely |
Same bottle, two modes. The accordion body springs back to full height the moment you fill it.
Why silicone beats hard plastic
Hard plastic bottles are rigid by definition — they can't pack down, and cheaper ones scratch, cloud, and start to smell over time. Silicone is different: food-grade, flexible, and durable. Our body flexes thousands of times without splitting, and because the surface is non-porous, a quick wash leaves it fresh with no lingering taste. If you want the full breakdown, our silicone water bottle page goes deeper.
How it compares
| Type | Packs down | Reusable | Taste-free |
|---|---|---|---|
| Silicone (ours) | Yes — to a little over half | Yes, for years | Yes |
| Hard plastic bottle | No | Yes, but bulky | Often picks up smells |
| Stainless steel bottle | No | Yes, but heavy | Yes |
| Single-use plastic | No | No | Yes, then trash |
Steel keeps drinks cold longer; hard plastic is cheap. But if space and weight matter — travel, hiking, commuting, the gym — nothing beats a bottle that folds flat.
Same capacity, side by side: one of them still takes up a full bottle of space once it is empty.
Five things that separate a good one from a gimmick
1. Material: silicone over thin TPU
The body is the whole bottle, so start there. Most collapsible bottles use either food-grade silicone or a thin TPU plastic film. Silicone is the one you want. It flexes through thousands of fold-and-expand cycles without splitting at the creases, it is non-porous so it does not soak up flavors, and it feels reassuringly solid in the hand. Thin TPU pouches fold smaller and cost less, but they are prone to picking up a plastic taste, they crease into weak points over time, and they feel flimsy when full. The Squishly body is food-grade silicone and BPA-free, which is the baseline any bottle you drink from every day should meet.
2. A leak-proof cap you can trust in a bag
A collapsible bottle lives in your bag, so a leak is not a minor annoyance — it soaks a laptop or a change of clothes. Look for a screw cap rather than a snap-on lid, and ideally a metal one. A stainless steel screw cap threads down evenly, does not crack if it gets stepped on, and keeps a consistent seal over months of use. Squishly uses a stainless steel screw cap for exactly this reason.
3. The right capacity for a real day
Capacity is a balance. Too small and you are refilling constantly; too large and the bottle is heavy and bulky even when collapsible. For everyday carry, commuting, the gym, and most day hikes, somewhere around 17 oz (0.5 L) is the sweet spot — enough to matter between refills, small enough to pack down neatly and hold in one hand. That is the size Squishly is built at.
4. How small it actually folds
This is the feature people buy the category for, and it is where designs differ most. An accordion silicone bottle collapses straight down its ribs and locks short, so a full 17 oz bottle stands only a fraction of its expanded height once folded. That flat form slips into a jacket pocket, a laptop sleeve, or the side pocket of a carry-on. Ask one question of any collapsible bottle: does it stay collapsed on its own, or does it spring back open in your bag? A design that locks short when empty is the one you will actually keep using.
5. A carabiner, so it clips instead of taking up space
The small detail that turns a collapsible bottle into a travel bottle is the carabiner clip. Instead of finding room inside a full daypack, you clip the bottle to a strap or a belt loop and forget about it. On a trail it hangs where you can grab it one-handed; in an airport it rides on the outside of your bag through the terminal. Squishly includes a carabiner on the cap. It sounds minor until the first time you are glad you did not have to dig for your water.
The best collapsible water bottle for how you use it
For travel and flying
This is the use case collapsible bottles were made for. You bring it through airport security empty — an empty bottle passes the TSA liquid rule with no issue — then fill it at a fountain past the checkpoint instead of paying for water at the gate. Packed flat, a 17 oz bottle barely registers in a carry-on. When it is full, the carabiner clips it to the outside of a daypack so it is not eating your packing space. We go deeper in our guide to the best collapsible water bottle for travel and hiking.
For hiking and day trips
On a day hike, weight and pack space both matter, and a collapsible bottle helps with both. Clip it to your pack, drink it down over the morning, and as it empties you can fold the collapsed portion so it stops swinging around. At 17 oz it covers a short hike between refill points. The carabiner and the light silicone body are what make it a natural trail companion.
For the gym
At the gym you want something that survives being dropped, wiped down easily, and stuffed into a full bag afterward. Silicone shrugs off drops that would dent metal or crack cheap plastic, the stainless steel cap seals against a sweaty gym bag, and when the session is over the empty bottle folds down instead of rattling around. A quick rinse and an open dry keep it fresh between workouts.
For kids and school
For younger users, the priorities shift to easy opening and forgiveness. A soft silicone body will not shatter if it is dropped in a hallway, the screw cap is simple to open and close, and the whole thing weighs almost nothing in a backpack. It clips to the outside of a school bag with the carabiner and folds flat when the water is gone. As with any bottle a child uses, the real work is cleaning — rinse it daily and let it dry open, which is easy because the silicone body unfolds fully.
For the desk and everyday carry
On a desk it stands upright on its own and takes the same footprint as any bottle — until the water is gone. Then it folds down and stops competing with your notebook, your keyboard and your bag for room. That is the whole trade: you carry full-size capacity and store almost nothing.
The quick facts
capacity — enough for the gym, the commute, or a hike, without the bulk
— Squishly product specs, 2026
the height it folds down to when empty — 4.5 in down from 8.3 in, a little over half, and still small enough to clip to a bag or slip in a pocket
— Squishly product specs, 2026
average rating across 30 verified Squishly buyers
— Verified Squishly reviews, 2026
Getting the most out of it
Care & first use
Before the first use, unfold the bottle fully and wash the body and cap with warm soapy water — the silicone opens right up so you can reach everything. Fill it, hand-tighten the stainless-steel cap, and you're set. To collapse it, empty it out, then press down from the top and twist gently; it folds accordion-style to about a little over half its height.
To keep it fresh for years: rinse after drinks other than water, wash by hand rather than in the dishwasher, and always let it air-dry unfolded before you pack it away. Stored damp and collapsed, any bottle can develop odor — a minute of drying prevents it. Our cleaning guide has the full routine.
Specifications
| Capacity | 17 oz (0.5 L) |
|---|---|
| Height, open | 8.3 in (210 mm) |
| Height, folded | 4.5 in (115 mm) |
| Diameter | 2.8 in (70 mm) |
| Material | Food-grade silicone body, BPA-free |
| Cap | Stainless steel, leak-proof screw seal |
| Extras | Built-in carabiner clip |
| Colors | Slate · Lavender · Blush · Black |
| Shipping | Free in the US, 6-10 business days |
| Guarantee | 30-day money-back |
Squishly is an independent store. We select and sell this bottle directly, with US-based customer support by email.
Rated 4.7 / 5 across 30 verified reviews
Reviews from verified buyers, with their own photos. Here are three — the rest are on our reviews page.
"Bigger than I expected, and it actually stands upright on its own on my desk. Perfect for long days at the office."
— Ashley R., verified buyer
"Exactly what the listing shows. The opening is nice and wide, so it's easy to drink from and easy to drop ice in."
— Isabella N., verified buyer
"Lovely, exactly like the picture. The color is really pretty and the whole thing feels solid."
— Nathan C., verified buyer
Updated July 19, 2026. See how we test.
Collapsible water bottle questions
How small does it fold down?
When empty, the silicone body twists and presses down accordion-style from 8.3 in to 4.5 in — a little over half its full height. It slips into a bag pocket, a purse, or even a large coat pocket, and the built-in carabiner clips it to a backpack. Full, it holds a generous 17 oz.
Is it really leak-proof?
Yes. The stainless-steel screw cap seals tight, so you can toss the bottle in a bag next to your phone or laptop without worrying. As with any bottle, hand-tighten the cap fully and keep the threads clean for the best seal.
Is the silicone safe and BPA-free?
The body is made of food-grade silicone and is BPA-free. It doesn't hold onto flavors or smells the way some plastics do, and it handles cold and room-temperature drinks well. We recommend water and cold beverages rather than boiling liquids.
Can it go in the dishwasher?
The cap is stainless steel and easy to rinse. For the silicone body, hand washing with warm soapy water is the safest way to keep it in top shape over time — it unfolds fully so you can reach every part. Let it air-dry open before folding it away.
Which color should I pick?
It comes in four: Slate, Lavender, Blush, and Black. Slate and Lavender are the crowd favorites for an everyday, fresh look; Black hides scuffs best for gym and travel use; Blush is the softest, prettiest option. They all perform identically — it's purely a style choice.
How long is shipping?
Shipping is free anywhere in the US. Orders arrive within 6 to 10 business days, and you get an email with tracking as soon as your bottle ships.
What if I don't like it?
You're covered by our 30-day money-back guarantee. If the bottle isn't for you, email us and we'll make it right. Checkout is secure (cards and Apple Pay).
Does it fit in a cup holder?
Yes. At full size the body is slim enough for most car cup holders and bike cages, and the accordion shape actually gives it a good grip. When you're done, collapse it so it stops rolling around your bag.
Is a collapsible water bottle good for travel?
Yes. A collapsible water bottle is one of the easiest things to travel with. It goes through airport security empty, packs completely flat in a bag, and clips to the outside of a daypack with its carabiner. Once you land or clear security, you refill it at a fountain or refill station. That is why travel and hiking are the two use cases collapsible bottles suit best.
Collapsible vs stainless steel water bottle: which is better?
It depends on what you value. Stainless steel keeps drinks cold for hours but stays the same rigid size whether it is full or empty, so it takes up space all day. A collapsible silicone bottle packs down when empty and weighs less. For commuting, travel, hiking, and the gym — anywhere luggage space matters — collapsible is the one you will keep reaching for.
Ready to ditch the bulky bottle?
One, two, or three — 17 oz each, four colors, folds down from 8.3 in to 4.5 in. Free US shipping and a 30-day guarantee.
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