Is PETT2GO's Dog Raincoat Really Waterproof and Breathable?

"Will this raincoat actually hold up in heavy rain?" "If it's this waterproof, won't my dog overheat inside it?"

Waterproofing and breathability are the two hardest things to get right at the same time in a raincoat. Water can't get in — but the moisture your dog's body produces still needs to get out, or your dog stays dry from the rain and gets soaked in sweat instead.

So when PETT2GO develops a raincoat, we don't just look at "is it waterproof." We treat wearing comfort and safety as one package, and send the fabric to a third-party lab to test hydrostatic head, moisture vapor transmission, and material safety.

What we actually want to know is simple: Can it hold up in heavier rain? Does it get stuffy after a while? Is the fabric and hardware touching your dog every day actually safe?

Here are the answers, straight from the test data.

How Much Rain Can This Raincoat Actually Handle?

Short answer: PETT2GO's raincoat tested at a hydrostatic head of 15,381 mm H₂O.

Hydrostatic pressure is simply: how much water pressure it takes to force water through the fabric. The higher the number, the harder it is for water to push through.

This isn't just about how hard it's raining. When your dog sits on wet ground or lies in wet grass, their own body weight presses water into the fabric too — so real waterproofing can't be judged just by whether water beads up on the surface.

PETT2GO's raincoat was independently tested to the JIS L1092 hydrostatic pressure test method:

In other words, this fabric isn't just surface-repellent (which mainly helps it stay cleaner) — it can actually withstand water pressure and resist penetration.

Against typical outdoor performance-gear specs, 15,381 mm is a genuinely solid waterproof rating, comfortable with sustained rain and heavier downpours on a normal walk.

Fabric waterproofing is only the first layer, though. A truly waterproof raincoat also depends on seams, zippers, openings, and overall construction — a single hydrostatic-head number can't tell you how waterproof the whole garment is.

With Waterproofing This High, Won't My Dog Overheat?

PETT2GO's raincoat tested at a moisture vapor transmission rate of 58,861.3 g/m²/24hrs.

The whole point of a good waterproof fabric is: water can't get in, but the moisture your dog's body produces has to get out.

Dogs generate heat and moisture continuously while active. If that moisture gets completely trapped inside the garment, your dog can end up hot and clammy even though no rain got through.

That's why we also test to the JIS L1099 moisture-permeability method (potassium acetate method).

This number represents how much water vapor can pass through one square meter of fabric in 24 hours under the specified test conditions. The higher the number, the more easily moisture escapes through the fabric.

One important caveat: moisture-permeability numbers from different test methods can't be directly compared. Even when the unit is the same (g/m²/24hrs), different test methods and conditions can produce very different numbers — so PETT2GO publishes its actual test method and result rather than ranking against numbers from other standards.

What matters to us isn't "the number looks big" — it's confirming that this fabric maintains a real path for moisture to escape while also achieving high water resistance.

📌 PETT2GO Tip: Breathability matters for a practical reason, not just comfort. A hot, humid, poorly ventilated environment against the skin is one recognized contributing factor behind common dog skin issues like hot spots — and that's exactly the kind of environment a "waterproof but stuffy" raincoat can create in a humid climate. That's why we require both waterproofing and breathability, not just one.

What Is CNS 15290, and Why Test a Dog Raincoat Against It?

Waterproofing and breathability answer "is it good to wear." The next question is the one we care about even more: is the fabric touching your dog's skin every day actually safe?

PETT2GO's raincoat was tested against relevant sections of CNS 15290, Taiwan's national textile safety standard.

CNS is Taiwan's national standards system, and CNS 15290 sets safety requirements specifically for textiles. These substances are controlled not only because they can contact human or dog skin directly, but because some of them can persist and accumulate in the environment, affecting human health, ecosystems, and water systems over the long term.

So the question we're asking isn't just "could this cause an allergic reaction?" — it's the fuller version: "Does this fabric contain anything that shouldn't be there — for the wearer, the dog, and the environment?"

CNS 15290 Test Results

📌 What Exactly Are PFOS and PFOA?

PFOS and PFOA both belong to the PFAS family of fluorinated chemicals. They were once widely used across industries for their water- and oil-resistant properties, but they're also extremely difficult to break down in the natural environment — which is why they're commonly called "forever chemicals." We test for PFOS and PFOA not only for your dog's safety while wearing the garment, but because of the long-term impact these substances can have once they enter the environment.

For a deeper look at what PFOS and PFOA are and why they've drawn growing global attention, see our companion article: What Are PFOS and PFOA? Why Even Dog Raincoats Are Going PFAS-Free Now.

It's Not Just the Fabric: Zippers and Reflective Trim Get Tested Too

Dogs don't just interact with a raincoat's main fabric. They may lick the zipper, chew on the reflective trim, and repeatedly pull at the elastic cord, eyelets, and other hardware during play. That's why PETT2GO's safety testing isn't a matter of cutting one swatch of fabric and calling it done. From the fabric itself to the zipper pull, teeth, and tape, the reflective binding, the elastic cord, and the coating on the metal eyelets — every component your dog actually touches goes into testing, referenced against the relevant sections of the US CPSC (Consumer Product Safety Commission) children's product safety requirements, covering both physical and chemical safety.

Why hold dog gear to a children's safety standard? The reasoning is simple: to us, a dog is family. They lick, they chew, and small protruding parts can end up treated like a toy. So beyond chemical safety, we also want to confirm there are no dangerous sharp points, sharp edges, or small parts that could come loose and be swallowed.

SGS, Intertek, OEKO-TEX®, and bluesign® — What's the Actual Difference?

Browsing outdoor gear, you've probably noticed SGS, Intertek, OEKO-TEX® STANDARD 100, and bluesign® showing up together in the world of performance textiles — but they actually cover very different ground.

SGS

Third-party testing & inspection

Intertek

Third-party testing body

OEKO-TEX®

Harmful-substance verification

bluesign®

Textile supply chain management

So these aren't three interchangeable "safety grades." SGS and Intertek are third-party bodies that carry out testing and certification; OEKO-TEX® STANDARD 100 is focused on harmful substances in the textile product; bluesign® extends the lens further upstream, into materials and the production supply chain.

PETT2GO doesn't publish this test data to collect the most badges — we want to be clear about the questions that actually matter for use: Is the raincoat actually waterproof? Does it get stuffy? Is the fabric and hardware touching your dog every day actually safe?

Gear Recommendation

📊 The Data Behind This Article

FAQ

Q1: What's the hydrostatic head rating on PETT2GO's raincoat?

15,381 mm H₂O. Tested to JIS L1092, the fabric withstands water pressure up to that level before penetration. A higher rating means the fabric can handle more pressure without letting water through.

Q2: Is the raincoat breathable?

More precisely, it has high moisture vapor permeability. Tested to the JIS L1099 potassium acetate method, the fabric's moisture vapor transmission rate is 58,861.3 g/m²/24hrs, meaning moisture your dog's body produces can pass through the fabric and escape.

Q3: Is a 15,381 mm hydrostatic head enough for heavy rain?

This number shows the fabric itself has a genuinely high resistance to water pressure, comfortable with sustained rain and heavier downpours. But a raincoat's overall waterproofing also depends on seams, zippers, openings, and how it's worn — so it shouldn't be read as "zero water penetration under any condition."

Q4: What is CNS 15290?

CNS 15290 is Taiwan's national standard for textile safety requirements. Testing against it controls for specific hazardous chemicals in textile products, reducing risk to both human contact and the environment.

Q5: Why test the zippers and other hardware too?

Because dogs don't just touch the fabric when wearing a raincoat — they may lick or chew the zipper, reflective trim, or other hardware. That's why PETT2GO includes these components in its chemical and physical safety testing as well.

Taking responsibility for dogs, their families, and the environment is where our testing starts.

Turning performance into visible data is the answer we want to give you.

Not "trust us, it works" — but numbers that speak for the product.

Related Reading

• Is PETT2GO's Lightweight Windbreaker Really Water-Resistant and Safe? Reading the Third-Party Test Data
• What Are PFOS and PFOA? Why Even Dog Raincoats Are Going PFAS-Free Now
• Rainy Season Dog Skin & Paw Care Guide
• Rainy Day Guide