
Sizing Chart
Potty Train In Weeks, Not Months
Avellia Training Underwear uses Feel-Learn™ technology to help your child recognize their body's signals -the key to faster potty training success.
The Difference Avellia Makes
Disposables work against potty training success. Avellia helps you gets results in weeks, not months.
|   | Potty Training Underwear | Disposables |
|---|---|---|
| Eco-Friendly, Reusable for months | ||
| Gentle on sensitive skin | ||
| Builds Body Awareness | ||
| Feels like real underwear | ||
| Potty Trains Faster |
Start Potty Training Your Toddler Today
Frequently Asked Questions
Why we created these underwear
Why we created these underwear
We’re parents too.
After struggling with diapers, confusing methods, and too many messes, we realized there was a better way.
So we teamed up with pediatricians and designers to create training underwear that actually helps kids learn — instead of just managing accidents.
Thousands of parents later… it’s still the product we wish we had from day one.
What exactly are potty training underwear?
What exactly are potty training underwear?
We’re not diapers.
We’re not pull-ups.
We’re not plastic.
Avellia is real underwear that helps your toddler potty train faster — with fewer messes and more wins.
🚽 Feels like real undies (because they are)
💧 Absorbs small accidents without bulk
💪 Builds your child’s confidence
🧠 Supports popular methods like Oh Crap
🧺 Washable. Reusable. Eco-friendly.
How do I wash them?
How do I wash them?
Just rinse (if needed), toss in the wash, and dry. They’re built to survive hundreds of washes — because, let’s be real, you’ll need them to.
🧼 Machine washable
♻️ Reusable + eco-friendly
👶 Still super soft after 100's of washes
Be sure to use a warm or cold wash, and delicate setting where possible
Are they suitable for night-time potty training?
Are they suitable for night-time potty training?
Avellia underwear is designed primarily for daytime training — where your toddler is awake, aware, and learning body cues.
Nighttime dryness is a different journey, and most children take longer to master it. That said, many parents use Avellia for night time and find success while transitioning out of diapers.
For heavy night wetting, we recommend pairing with a waterproof mat or our extra inserts for extra peace of mind.
How are these different than disposables?
How are these different than disposables?
Our potty training underwear stands out with its innovative 2-layer design, ensuring a unique experience for both parent and child. Here's the breakdown:
First Layer: Unlike diapers or pull-ups, this layer doesn't absorb wetness. Instead, it allows your child to feel the discomfort, aiding in their awareness. Plus, it prevents leaks, so you won't have to deal with puddles or soiled sheets.
Second Layer: Acting as a safety net, this layer helps reduce that any potential leaks, providing extra peace of mind.
With our Avellia Underwear, you get the best of both worlds: a comfortable, cute design for your child and a stress-free potty training experience for the whole family.
Is Avellia underwear suitable for both guys and girls?
Is Avellia underwear suitable for both guys and girls?
Yes! All Avellia underwear is unisex and works great for both boys and girls.
The absorbent area is built where it’s needed most — and the design is neutral enough for any toddler to feel like a “big kid” in style
Are they really leak-proof?
Are they really leak-proof?
We design our underwear with a triple-layer absorbent core that helps reduce leaks and messes. However, they’re not leakproof in the way a diaper is. If your child has a larger accident or wears them overnight, there may still be some leakage. These are best for daytime accidents during active potty training
How does the 75 risk-free trial work?
How does the 75 risk-free trial work?
Returns are easy!
Try out Avellia Underwear, and if you don't love it within 75 days we'll happily refund your order.
We strongly believe in the quality of our underwear and have helped potty train thousands of toddlers. We're here to do the same for you!
How long does shipping take?
How long does shipping take?
All orders are fulfilled and then shipped out to anywhere in 1-2 working days on average.
Worldwide shipping takes 4-12 working days depending on location:
- United States: 4-8days
- Europe: 4-8days
- Australia: 4-8days
- United Kingdom: 4-8days
- Canada: 4-8 days
- Rest of world: 5-10 days
All orders come with tracking information once shipped.
🔒 OFFICIAL BRAND WEBSITE
Avellia products are ONLY sold through our official website.
Products found on Amazon, eBay, or other marketplaces are not authorized by Avellia (even if they mention UpAiry) and are counterfeit.
Beware of counterfeits & other lookalike brands that don't have our advanced potty training technology.