Skip to main content

SIZE GUIDE || KIDS'

BABY AND TODDLER SIZE CHART

Use the chart below to determine your child's size based on height and weight.

About the store

2026 © TOP UNDERWEAR.

We believe family ties should be as strong as the undies we wear. That’s why we’ve crafted a line of matching briefs for dads, grandpas, and their little champs—designed to bring comfort, confidence, and a little humor to every day. For young boys who battle the occasional skid mark, our clever brown undies turn an oops into an oh-well, blending practicality with pride. From playground to porch, we’ve got every generation covered, because family is where messes meet memories. Wear the bond. Hide the skid. Celebrate the crew.

Support
Company
Powered by Shopify
American Express Apple Pay BancontactDiners ClubDiscoverGoogle Pay iDEAL MastercardPayPalShop Pay Visa