Tiny Undies - small baby underwear, 3-pack

Tiny Undies - small baby underwear, 3-pack

Regular price $30.00 $25.00 Sale


Say goodbye to diapers and hello to Tiny Undies!
This set of three comfy, super-soft undies is just what you need to make potty training or elimination communication a breeze for your baby or toddler.

Crafted from gentle 100% OEKO TEX 100 certified cotton with nontoxic dyes, these undies are as soft as they come, so your little one stays comfortable all day long. The low-rise design and stretchy waistband make it easy for tiny hands to pull them up and down—perfect for those quick potty breaks!

Tiny Undies are made to last with a luxurious single-layer crotch, soft 100% ribbed cotton leg gussets, and a tag-free design to keep things itch-free. And with their fun, unisex colors, they're easy to mix and match—ideal for passing down to younger siblings.

Plus, new < Roomier > sizing is coming soon!!!

Size Chart


Please visit the Size Guide here for more info on using this Size Chart.

Customer Reviews

Based on 375 reviews
Devon D.
Absolutely perfect!

My little has been wearing Tiny Undies for 2 years now, and they’re absolutely perfect! Cora wears size 5T at 40 lbs & 40 in. They’re the only undies we’ve found that fit where they should & stay put no matter what fun things we do. I love how the quality cotton keeps her modestly covered underneath dresses while playing & being a kid. Everything about Tiny Undies is perfect for super sensitive skin & eczema babes… organic cotton & dyes, no exposed elastic, perfect fit to minimize movement & chaffing, flat lock seams… we couldn’t ask for more!

Adrienne S.
Thank you!

Thank you for being so easy to work with! I mean, I love that you have undies for those of us that have smaller little ones, which is AMAZING!, but you have great customer service, too! :-) I used to train people in customer service in the corporate world, and y'all are great! Plus, I am very happy to support your business. Thank you for great products! You have a loyal customer in us, and I will be recommending your products to others (including my MOPS [mothers of preschoolers] group).

Jamee B.
Game changer

14m old Henry now wears tiny undies almost all day, and we both couldn’t be more excited! Who knew just making the switch from diapers and undies would be so easy?! Obviously, we still have a few misses every day, but now Henry won’t pee in his high chair anymore (he doesn’t like to sit in it, obvs) and communicates more clearly when he needs to go! Before I made the switch, I was relying solely on timing and intuition. Giving him some more responsibility and independence has been a game changer! Being the only person in my circle to do EC has been isolating at times, but seeing him progress so well has made it all worth it!