The round insulated foldable tub: light and easy to store
This is the most common format for an ice bath at home, in the backyard or on a balcony. The soft, insulated wall is held upright by vertical tubes, with a lid against heat and dust. Capacity and weight vary by model; the one in our kit holds 87 gallons and weighs 8.4 lb empty, and one person can set it up and fold it back into a bag alone. You sit in it with your back straight and knees bent. The cold comes from tap water plus added ice: for 66 gallons, going from 68 °F to 54 °F takes about 48 lb of ice in theory, more in practice.
On budget, public prices noted on September 28, 2026 give an order of magnitude: about $44 to $64 for a round foldable tub sold on its own, without accessories. Kits from specialist brands, with a cover or accessories, sit higher, at about $120 to $160. The limit of this category is well known: without a chiller, the water warms up, especially in summer. A closed lid and shade help, with no promise of how long the water stays cold.
The oval foldable tub: for lying down
Some foldable tubs are oval and longer: you lie down in them with your legs stretched out instead of sitting with your knees bent. The position feels closer to a bathtub and may suit taller people or anyone who dislikes a narrow space. The principle does not change: a soft wall, no machine, ice added before the plunge. But for the same water depth, a longer tub holds more gallons: more ice every session, more time to fill and drain, and more weight on the floor, since a gallon of water weighs about 8.3 lb.
We have not recorded prices for this category: they depend on the model, the length and the accessories included. Before you buy, compare the inside length with your height lying down, check that an insulated lid is included and look at where the drain sits. On a balcony or a small patio, floor space and load matter even more than with a round tub.
| Category | Capacity and empty weight | Price noted and cooling source |
|---|---|---|
| Round insulated foldable, sold on its own | Varies by model, not recorded (the tub in our kit: 87 gal, 8.4 lb) | About $44 to $64; ice |
| Round foldable in a specialist brand kit | Varies by model, not recorded | About $120 to $160; ice |
| Oval foldable | More water than a round tub; not recorded | Depends on the model, not recorded; ice |
| Rigid inflatable (drop stitch) | About 130 to 210 gal, 35 to 42 lb | About $199 to $349 for the tub alone; chiller |
| Barrel, metal or wood | Permanent installation; not recorded | Clearly higher budget, not recorded; depends on the setup |
The rigid inflatable tub: the one built for a chiller
Rigid inflatable tubs, known as drop stitch, form a firm wall once inflated. They are the main type designed to take a chiller, an electric appliance with a pump that cools and filters the water continuously. That is often where the term cold plunge is used rather than ice bath, since the machine replaces the ice. They are bigger: about 130 to 210 gallons, for 35 to 42 lb empty. Once full, that means roughly 1,100 to 1,760 lb of water, plus the person, which rules out many balconies and upper floors without the approval of your building manager or HOA.
Prices noted on September 28, 2026: about $199 to $349 in the US for the tub alone. The chiller comes on top, and tub plus chiller sets run about $649 to $1,099. You also need an outlet and an electrical setup suited to an appliance sitting close to water: have an electrician check it before you plug anything in for the first time.
Barrel, metal or wood: a permanent installation
Barrels, metal tubs and wooden tubs make up a different family: permanent installations, set up once and for all, most often outdoors. They do not fold, they are hard to move and they need a prepared spot: level ground that can bear the load, access to water, a way to drain, sometimes a power supply. Their budget is clearly higher than that of soft tubs, and we have not recorded their prices: this guide gives neither a price nor a capacity for them.
This family is mainly for people who already have a well-established cold plunge routine and a corner set aside for it all year round. If you do not yet know whether you will enjoy the practice, a soft tub lets you try it with a smaller commitment, and you can move to a permanent setup later, once you know your real needs for space and use.
What to check, whatever the model
Product listings highlight outside dimensions, while everyday use depends on the inside. A tub with an outer diameter of 33.5 in (85 cm) may offer only 31.1 in (79 cm) inside, and that is the figure that tells you whether you will fit sitting down. On foldable tubs, the flaw mentioned most often in public reviews is still leaking, at the bottom or around the tubes. Leave the tub full for 24 hours when it arrives to check that it holds water, and keep the repair patches close at hand.
To empty it, use the hose or the plug provided, outdoors, in a shower or over a drain: tipping a full soft tub over can make its tubes slip. As for weight, a full tub weighs about 8.3 lb for every gallon it holds, plus the person. Set it on level, stable ground; for a balcony or an upper floor, ask your landlord, building manager or HOA what load is allowed.
- Inside dimensions and possible water depth.
- An insulated wall and an insulated lid that closes properly.
- Draining: a hose with a valve, a plug at the bottom.
- Repair patches included.
- Returns: how many days you get, and who pays for return shipping.
- Where it ships from: stock in your region means no customs step.
Our kit, and the rules for your first plunge
The Ice Bath Tub shop sells a single product: a round, insulated foldable tub, black, 33.5 in (85 cm) in diameter and 29.5 in (75 cm) tall outside, 31.1 x 26.8 in (79 x 68 cm) inside, for 87 gallons and 8.4 lb empty. Six tubes hold it upright; only the top ring inflates. A 3-layer wall, a padded insulated lid, a thermal dust cover, a cushion you fill with water, a side drain hose with a valve, a bottom plug, a hand pump, two repair patches, two seals and a zipped bag: exactly what is in the box. The kit ships free from stock in your region, with no customs step, and you have 30 days after delivery to change your mind. We resell this tub, we do not make it, and we have not tested it ourselves.
Whatever model you choose, the rules are the same. See a doctor before your first plunge if you have heart disease, high blood pressure, a heart rhythm disorder, a circulatory disorder (including Raynaud's syndrome), diabetes, epilepsy, are pregnant or are under medical treatment. Never plunge alone. The tub is not for children: lid closed when not in use, tub emptied when no one is watching it. Get in slowly, breathe calmly, start with 1 to 2 minutes, keep your head above water, and no alcohol, drugs or medication that makes you drowsy.
Frequently asked questions
Is a foldable cold plunge tub worth it?
It makes sense if you want a cold plunge routine at home without a permanent installation: little space needed, a one-person setup, easy storage over the winter. It makes less sense if you want water that stays cold all the time without buying ice, or if you prefer to lie down. Many people who practice it say they like the feeling of freshness, with no guarantee it will be the same for you.
Inflatable or foldable: what is the difference?
A rigid inflatable tub stands thanks to its inflated wall, which becomes firm. A foldable tub stands thanks to tubes slid into a soft wall. On the tub in our kit, only the top ring inflates, using the hand pump provided: it forms the rim and gives your neck something to rest on. The rest is not inflatable, which is why it packs into a bag.
Do you need a chiller to take an ice bath?
No. Ice is enough to cool a foldable tub before each session, as long as you plan enough of it and keep the lid closed. A chiller saves you from buying ice, but it needs a tub designed for it, an electrician and a bigger budget. The tub in our kit is not designed to take one. Our guide to chillers goes through this choice in detail.
