Lucas Boys Briefs are crafted in 100% certified organic cotton so you can be sure that your child stays cool, dry, and comfortable throughout the day.
These undies are super soft to the touch and extra durable. A logo printed elastic waistband adds some fun color play while ensuring that these briefs won’t roll down or leave marks.
Key Features
100% Organic Cotton
Certified organic cotton fabric used throughout
Always Tagless
No scratchy or itchy tags
Comfy Waistband
Plush-back wide waist elastic won't bind or pinch their skin
No Harmful Chemicals
Our fabrics are certified by the OEKO-TEX Standard
Functional Fly
Functional Fly for ease and comfort
Machine Washable
Our organic cotton is not treated and may shrink 7-10%
100% Organic Cotton
Certified organic cotton fabric used throughout
Always Tagless
No scratchy or itchy tags
Comfy Waistband
Plush-back wide waist elastic won't bind or pinch their skin
No Harmful Chemicals
Our fabrics are certified by the OEKO-TEX Standard
Functional Fly
Functional Fly for ease and comfort
Machine Washable
Our organic cotton is not treated and may shrink 7-10%
Why I chose this:
Free Shipping
On all orders within the continental U.S.
Free Returns
Breathe easy with free returns on all products
30-Day Guarantee
Completely comfy or your money back
What customers say about Lucas
- Reviews
- Questions

I have been buying these underwear exclusively for my children for years. They are well made and fit nicely. My sons both have eczema that they get on their bottoms, and with these underwear they don’t have flare ups.

We have tried five different underwear looking for something for my son who is always aware of his underwear and adjusting them. We tried seamless microfiber type and other general brands. He likes briefs and said these have made his sensitivities so much better. None of the others helped at all. He loves these. So far so good. Thank you!
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Size Chart
All measurements are in inches and pounds.
All measurements are in inches and pounds.
For tips on how to measure, see our Fit Guide