Tinkle Buddy Training Undies

We're parents too. After fighting with disposables, half-working methods, and way too many accidents, we knew there had to be a better way. So we worked with pediatricians and designers to build training underwear that actually helps kids learn — not just contain messes. Thousands of families later, it's still the product we wish we had on day one.

Not diapers. Not pull-ups. Not plastic. Tinkle Buddy is real underwear engineered to help your toddler potty train faster — with fewer messes and a lot more wins. 🚽 Feels like real undies (because they are) 💧 Catches small accidents without the bulk 💪 Builds your child's confidence 🧠 Works with popular methods like Oh Crap 🧺 Washable. Reusable. Made to last.

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!

Tinkle Buddy is designed primarily for daytime training — when your toddler is awake, aware, and learning their body's cues. Nighttime dryness is a different journey and most kids take longer to get there. Many parents do use Tinkle Buddy at night and have success transitioning out of overnight diapers. For heavier night wetting, pair them with a waterproof mat or extra inserts for peace of mind.

Made from premium fabrics with a waterproof outer layer, Tinkle Buddy Training Undies are built for real potty-training days. Each pair uses six layers of skin-friendly materials designed to feel soft, hold up to small accidents, and stop leaks — wrapped in cotton prints kids love. Here's the technology in your Tinkle Buddy undies: The Inner Layer is high-quality cotton, undyed and unbleached, so it's safe on your child's sensitive skin. It's breathable and comfortable, helping prevent rashes and shielding against pollen, dust mites, and other allergens. The Middle Layers are the absorbency core — a sheet of premium absorbent cotton plus three layers of thick gauze. These are what handle small accidents the way Tinkle Buddy needs them to. The Outer Layer is TPU waterproof fabric that protects your child's skin and clothes from any moisture. TPU is free from harsh solvents and chemicals — a toxin-free, environmentally friendly choice. The outside is finished with a cotton cover in fun prints, and it's hypoallergenic.

Tinkle Buddy stands out with a smart layered design built for both parent and child. First Layer: Unlike diapers or pull-ups, this layer doesn't lock wetness away. Instead it lets your toddler feel the moment of the accident, which builds awareness fast. It also keeps things contained so you're not dealing with puddles or soaked sheets. Second Layer: A safety net that helps stop any leftover wetness from getting through, for that extra peace of mind. With Tinkle Buddy, you get the best of both worlds — a cute, comfortable design for your toddler and a much calmer training experience for the whole family.

Our sizes are based on weight. If you are unsure or are in-between weights, its best to size down due to the Underwear being stretchy! You can find the full size guide below:

Yes! Every Tinkle Buddy pair is unisex and works great for boys and girls. The absorbent area is built where it's needed most, and the prints are designed so any toddler can feel like a "big kid" in style.

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.

Easy. Try Tinkle Buddy, and if you don't love it within 75 days we'll refund your order — no fuss. We stand behind these undies because they've helped thousands of toddlers finally get it, and we're here to do the same for you. To start a return, just email our team at hello@tinkle-buddy.com.

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. Returns Not happy with your purchase? No worries, we've got you covered! You may return it within 75 days of delivery for a full refund or exchange, no questions asked. To initiate a return, just contact our customer service team at hello@upairy.com

No — only one discount or promotion can be used per order. If multiple offers are available, the one with the greater value will apply automatically. For example, if you use a discount code, it may override other promotions like free shipping on 8-pair bundles. Free shipping is still available if your order meets the minimum threshold and no discount code is applied.