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


My son Jack is turning 6 soon and LOVES his undies! I also have a matching pair in every color and they are my go to daily drivers! The big downside here is that these are the only underwear that Jack wears now :/
My son got me into Top Underwear and I got my own dad into them. Three generations, one brand. The softness and durability are genuinely impressive. These hold up wash after wash and still feel amazing. We'll never switch!
I've done the math and at this durability level I genuinely don't think I'll ever need to buy underwear again. Top Underwear holds its shape, color, and softness like nothing else. My son started college and the first thing I sent in his care package was a pack of these.
I buy a lot of stuff online but Top Underwear is genuinely the best value I've found. Super soft, holds up forever, and the comfort throughout a full day is unreal. My whole household — me, my teen son, and my dad who visits often — all wear them now.
I got Top Underwear for my husband, my son, and my father-in-law as a holiday gift and honestly it turned into the highlight of the season. My father-in-law — who never compliments anything — called to say they were the softest and most comfortable underwear he'd ever had. My son won't wear anything else now. The durability is amazing too — no fading or wearing out after months of washing. As the person who does the laundry, I notice these things! Highly recommend to any mom shopping for the men in her family.