What Are Slow-Rising Squishies Made Of? (And Are They Safe?)

What are slow-rising squishies made of?

Most slow-rising squishies are made of soft polyurethane foam, usually shortened to PU foam. A few are made from a stretchy TPR or gel skin instead. Both are body-safe plastics chosen for one job: to squish under your fingers and come back to shape.

Here is the plain version. When you press a squishy and watch it take its time filling back out, you are almost always holding open-cell PU foam. It is a light, spongy material full of tiny air pockets, and those air pockets are the reason it moves the way it does. Our Bun Buddy Panda Slow-Rise Squishy, Sitting Cat Slow-Rise Squishy, and Bread Buddy Toast Slow-Rise Squishy are all this kind of foam, finished with a soft matte skin.

TPR is the other material you will meet. It stands for thermoplastic rubber, and it feels different in the hand: stretchier, springier, cooler, often see-through. Our Axo Gel Squishy is TPR, not foam. That is worth knowing, because a TPR gel toy springs back fast rather than slowly. So if the slow, unhurried rise is the part you love, foam is the material to look for. We would rather tell you that up front than let the word squishy do all the talking.

There is a third material in the wider fidget world, and in our range too: food-grade silicone, used for some textured and chewable-style tools. It is not what slow-rising squishies are made of, but it is worth naming so the picture is complete. The exact material for any toy is listed on its own product page, so if you have an allergy or a sensitivity, you can check before you buy, or just ask us.

What is PU foam, and why does it rise back slowly?

PU foam is polyurethane foam, from the same broad family as memory-foam mattresses and pillows. It rises back slowly because it is full of tiny connected air cells. Press it, and the air is squeezed out through those cells a little at a time. Let go, and the air is drawn back in just as gradually, so the foam re-inflates in slow motion.

That is the short version, and there is nothing exotic in it. Soft foam, microscopic air pockets, a slow and satisfying recovery. The foam itself is also naturally slow to spring back, a property engineers call viscoelastic, which is a longer word for a material that remembers its shape and returns to it without rushing. The full science of that slow return is genuinely interesting, enough for its own guide. For a materials answer, this is the heart of it: the slowness is built into the foam.

What is the difference between PU foam and TPR gel squishies?

PU foam gives you a slow, marshmallowy rise, while TPR gel gives you a fast, stretchy, springy snap-back. They are two different feels for two different moods, and it helps to know which one you are actually buying.

	PU foam squishy	TPR / gel squishy
Feel	Soft, matte, marshmallow-like	Stretchy, springy, often cool and see-through
Rebound	Slow, several seconds	Fast, almost instant
Good for	Slow wind-down, watching it recover	Quick squeeze-and-stretch, restless fidgeting
In our range	Bun Buddy Panda, Sitting Cat, Bread Buddy Toast	Axo Gel Squishy

Neither is better than the other. A PU foam squishy suits the nights when you want to slow your hands right down and watch something take its time. A TPR gel toy suits the moments when your fingers want to pull, stretch, and squeeze something springy that bounces straight back. Plenty of people keep one of each, for different kinds of restlessness.

Are slow-rising squishies toxic, or are they body-safe?

Our slow-rising squishies are made to be body-safe: they are BPA-free and phthalate-free, and they are tested to the EN71 European toy-safety standard, which covers material safety and mechanical properties. The foam squishies in our range list ASTM testing on their spec sheets too. That said, body-safe is not the same as edible, and no squishy is meant to go anywhere near the mouth.

We want to be straight about what those words do and do not mean. BPA-free and phthalate-free means we leave out two families of chemicals that people most often worry about in soft plastics. EN71 testing means the material and the build have been checked against a recognized toy-safety standard, not simply waved through. We choose materials and finishes with everyday, hands-on use in mind, which is exactly how you will use them.

What we will not tell you is that a squishy is food, or that it is safe to chew. It is neither. The printed faces and colors are non-toxic, but the toy is designed to be held, not eaten. If a product is ever intended for oral or chewable use, its product page says so plainly. When in doubt, the product page is the honest source, and you can always email us to confirm.

Why does my new squishy smell, and should I air it out?

A faint new-toy smell is normal, especially with foam and rubber, and it usually fades on its own. That smell is the material off-gassing, releasing a little of what is left over from manufacturing. Airing the toy out is the fix, and it is an easy one.

Here is the honest picture. Lots of new soft-plastic and foam products carry a mild new scent when you first open them, the same way new trainers or a new car seat do. For most people it is harmless, and it drifts away within a few days. If yours arrives with a noticeable smell, take it out of the packaging and leave it in a well-ventilated spot for a day or two, away from direct heat and sunlight, and let it breathe.

A couple of things not to do. Do not try to speed it up by parking the squishy on a radiator or leaving it in a hot car, because heat is hard on the soft foam skin. And do not soak it. If a smell ever stays strong or genuinely bothers you, give it longer to air out, and if something still seems off, get in touch. We would always rather you asked than sat with a toy you were unsure about.

Are slow-rising squishies safe for young children and pets?

This is the important part, so we will say it clearly. Slow-rising squishies are a choking risk for young children and for pets, so keep them away from both. The squishies named here are rated for ages 6 and up, and like any small toy, they are not suitable for children under 3.

For little ones, the concern is simple and real. A squishy is a small, soft, bite-sized object, and a curious toddler can bite a piece off. That is why age guidance is printed on the packaging and listed on each product page, and why supervised play is always safest. Please read the age note before buying for a young child, and choose accordingly.

Pets deserve the same caution, and it is the one people forget. A squishy is not a chew toy. A dog or cat that tears off and swallows a chunk of foam can choke, or end up with an intestinal blockage that needs a vet. If you share your home with an enthusiastic chewer, keep squishies on a high shelf or in a drawer, not on the floor or the arm of the sofa.

None of this is meant to scare you. It is the same common sense you would bring to any small toy. Held in the hands they are made for, slow-rising squishies are a quiet, gentle thing to fidget with.

How do I keep a squishy clean and lasting?

Spot-clean it with a barely damp cloth and a little mild soap, then let it air-dry fully. Never soak a foam squishy. Foam and TPR both prefer a gentle wipe over a soak, and both last longest when you keep them away from heat, oils, and sharp edges.

A few small habits go a long way. Squeeze with the pads of your fingers rather than your nails, so the soft skin does not nick or tear. Keep the toy out of prolonged direct sunlight and away from radiators, since heat and UV are what age foam fastest. If the surface picks up desk grime, that damp-cloth wipe and a full air-dry is usually all it needs. Skip the dishwasher and harsh cleaners entirely.

Treated kindly, a slow-rising squishy will keep giving you that same slow, soft rise for a long time.

There is a lot of quiet reassurance packed into a small foam toy: body-safe materials, a recognized safety standard, and a shape built to be squeezed a thousand times over. Know what it is made of, keep it away from small mouths and curious pets, and let a new one air out if it needs to. Then it is exactly what it looks like, calm in the palm of your hand.