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Size Chart
All measurements refer to the circumference.
Each size includes approx. 5 cm (2 inches) of stretch in the elastic.
2–3 yrs
14.1 in
8.1 in
7–20 lbs
3–4 yrs
15.3 in
9.5 in
22–35 lbs
4–6+ yrs
16.1 in
10 in
37–55 lbs
No worries — we offer a free size exchange.

Choose options
Size Chart
All measurements refer to the circumference.
Each size includes approx. 5 cm (2 inches) of stretch in the elastic.
2–3 yrs
14.1 in
8.1 in
7–20 lbs
3–4 yrs
15.3 in
9.5 in
22–35 lbs
4–6+ yrs
16.1 in
10 in
37–55 lbs
No worries — we offer a free size exchange.
Size Chart
All measurements refer to the circumference.
Each size includes approx. 5 cm (2 inches) of stretch in the elastic.
2–3 yrs
14.1 in
8.1 in
7–20 lbs
3–4 yrs
15.3 in
9.5 in
22–35 lbs
4–6+ yrs
16.1 in
10 in
37–55 lbs
No worries — we offer a free size exchange.
Money-Back Guarantee
672 autistic kids
on orders $70+
We know potty training—especially for autistic children—can take time. That's why every BrightKidCo order is backed by our 100-Day Calm Progress Guarantee.
Use your BrightKidCo underwear consistently as part of your child's potty training routine. If you don't feel it has been the right fit for your family, simply contact our support team within 100 days of delivery, and we'll help make it right.
Because every family deserves the confidence to try a gentler approach—completely risk-free.
BrightKidCo was created for children who need a gentle, consistent way to recognize when they're wet—without the overwhelming feeling of soaked clothing.
Unlike pull-ups that quickly wick moisture away, our Body Signal Learning Layer™ helps preserve the body's natural wetness cue while the absorbent core manages small accidents.
This allows many children to begin connecting the feeling of being wet with using the potty, while still helping reduce messes around the house.
Every child learns at their own pace, but many families notice clearer body awareness within the first few weeks of consistent daytime use.
Every pair is made with your child's comfort and safety in mind.
- ✔ Soft 100% cotton inner layer
- ✔ Breathable, lightweight construction
- ✔ Leak-resistant outer layer
- ✔ Gentle elastic waistband
- ✔ Free from PFAS and harsh chemicals
- ✔ Reusable & machine washable
- ✔ Designed for everyday comfort
BrightKidCo is made to feel like real underwear—not bulky training pants—helping support independence throughout potty training.
For the best experience, we recommend using BrightKidCo during daytime potty training.
- Replace pull-ups with BrightKidCo
- Keep a consistent potty routine throughout the day
- Praise every success—even small ones
- Stay calm after accidents and simply continue practicing
- Use the underwear consistently each day
Many autistic children benefit from predictable routines and repetition. Consistency often leads to the best long-term progress.
Remember: every child develops at their own pace, and progress may look different from one child to another.
To keep your BrightKidCo underwear performing its best:
- • Machine wash cold (30–40°C / 86–104°F)
- • Wash before first use
- • Use mild detergent
- • Do not bleach
- • Avoid fabric softener
- • Tumble dry on low heat or air dry
- • Do not iron
Proper care helps maintain absorbency, softness and long-lasting performance—ready for every step of your child's potty training journey.
Over 100,000+ kids got potty trained already.








Edit: After around Week 6 we have no random accidents anymore and I think she understood it now without any help from my side."

💡=🚽
The perfect touch of wetness on their skin.
Powered by the Body-Signal Learning Layer™.
Your child briefly feels a little wetness on the skin — and that feeling is exactly what the brain needs: notice it, connect it with going to the potty, and over time feel it coming before it happens. Here is how the 3 layers make that possible:
360° leak-resistant
No mess during training
Easy up & down
Supports independence
Feels like big-kid underwear
Easy routine switch
Ultra-soft & sensory-safe
No bulky diaper feel
Thin & discreet fit
Fits under everyday clothes
Premium quality
Reusable & washable — PFAS & BPA free
Every pee brings your kid
closer to the goal.
Every wet moment your child actually feels is one practice rep for the brain — feel it, notice it, get to the potty. Step by step it adds up:
What parents saw during the process.
Feedback from 5,679+ surveyed parents:



Here is what other parents say:
Why BrightKidCo is the
missing puzzle piece.
BrightKidCo™ |
Pull-Ups |
Other training pants |
|
|---|---|---|---|
| Gentle wetness signal | ✓ | ✕ | ✓ |
| Body-Signal Learning Layer™ | ✓ | ✕ | ✕ |
| Designed for autistic kids | ✓ | ✕ | ✕ |
| Sensory-safe seams & waistband | ✓ | ✕ | ✕ |
| Protects clothes & couch | ✓ | ✓ | ✕ |
| Feels like real underwear | ✓ | ✕ | ✓ |
| Supports body awareness | ✓ | ✕ | ✕ |
| Kids pull it up & down alone | ✓ | ✓ | ✓ |
| Reusable — no monthly boxes | ✓ | ✕ | ✓ |
| Hypoallergenic, no PFAS | ✓ | ✕ | ✕ |
| 100-day money-back guarantee | ✓ | ✕ | ✕ |
Everything you need to get started.

Complete Training Bundle
12 pairs — the full journey covered- FREE Stress-Free Potty Training E-Book
- FREE shipping
- Enough pairs so the washing machine never decides your schedule

Potty Progress Pack
8 pairs — a strong start- FREE shipping
- Enough for daily learning with a wash-day buffer
Every Detail Has a Reason.




FAQs
Click here!
Use BrightKidCo consistently — and if your child isn't fully potty trained after 6 weeks, or anytime within 100 days, email us for a complete refund. No pressure. No judgment.



