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Discover kids’ apparel from Old Daddin’ — youth tees, hoodies & onesies made for junior “old dads-in-training”. Stylish, comfy, American-stitched.

Kids Collection | Hoodies, Tees & Apparel for Kids

United States

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Who it’s for: the baby whose awesome dad gets the “Grandpa?” double-take.What it says: clear as day—He’s Dad, not Grandpa.Why it hits: it’s funny, it’s true, and it makes every intro easier. Sizes: NB–24 months Comfy all day: soft, snuggly, nap-friendly Easy changes: quick on/off for diaper duty Photo gold: hospital pics, Father’s Day, surprise reveals Matchy moment: pairs perfectly with the Old Daddin’ Hat Suit up your little spokesperson—and let Dad wear the grin. Size Front body length Body length Body width 3-6M 13.38" 17.75" 9.38" 6-12M 14.75" 19.5" 9.88" 12-18M 15.88" 20.25" 10.38" 18-24M 17" 21.38" 10.88"

Who it’s for: the baby whose awesome dad gets the “Grandpa?” double-take. What it says: clear as day—He’s Dad, not Grandpa. Why it hits: it’s funny, it’s true, and it makes every intro easier.
<ul data-start="322" data-end="578">
<li data-start="322" data-end="348">
Sizes: NB–24 months</li>
<li data-start="349" data-end="399">
Comfy all day: soft, snuggly, nap-friendly</li>
<li data-start="400" data-end="450">
Easy changes: quick on/off for diaper duty</li>
<li data-start="451" data-end="516">
Photo gold: hospital pics, Father’s Day, surprise reveals</li>
<li data-start="517" data-end="578">
Matchy moment: pairs perfectly with the Old Daddin’ Hat</li>
</ul>
Suit up your little spokesperson—and let Dad wear the grin.
<table id="sizechart" style="width: 100%; border-collapse: collapse;" border="1">
<tbody>
<tr>
<th style="padding: 8px; text-align: left;">Size</th>
<th style="padding: 8px; text-align: left;">Front body length</th>
<th style="padding: 8px; text-align: left;">Body length</th>
<th style="padding: 8px; text-align: left;">Body width</th>
</tr>
<tr>
<td style="padding: 8px; text-align: left;">3-6M</td>
<td style="padding: 8px; text-align: left;">13.38"</td>
<td style="padding: 8px; text-align: left;">17.75"</td>
<td style="padding: 8px; text-align: left;">9.38"</td>
</tr>
<tr>
<td style="padding: 8px; text-align: left;">6-12M</td>
<td style="padding: 8px; text-align: left;">14.75"</td>
<td style="padding: 8px; text-align: left;">19.5"</td>
<td style="padding: 8px; text-align: left;">9.88"</td>
</tr>
<tr>
<td style="padding: 8px; text-align: left;">12-18M</td>
<td style="padding: 8px; text-align: left;">15.88"</td>
<td style="padding: 8px; text-align: left;">20.25"</td>
<td style="padding: 8px; text-align: left;">10.38"</td>
</tr>
<tr>
<td style="padding: 8px; text-align: left;">18-24M</td>
<td style="padding: 8px; text-align: left;">17"</td>
<td style="padding: 8px; text-align: left;">21.38"</td>
<td style="padding: 8px; text-align: left;">10.88"</td>
</tr>
</tbody>
</table>

He's Dad, Not Grandpa Baby Onesie

YELLOW / 0-3MOS

YELLOW / 3-6MOS

YELLOW / 6-12MOS

YELLOW / 12-18MOS

YELLOW / 18-24MOS

WHITE / 0-3MOS

WHITE / 3-6MOS

WHITE / 6-12MOS

WHITE / 12-18MOS

WHITE / 18-24MOS

PINK / 0-3MOS

PINK / 3-6MOS

PINK / 6-12MOS

PINK / 12-18MOS

PINK / 18-24MOS

NATURAL / 0-3MOS

NATURAL / 3-6MOS

NATURAL / 6-12MOS

NATURAL / 12-18MOS

NATURAL / 18-24MOS

HTHR COLUM BLUE / 0-3MOS

HTHR COLUM BLUE / 3-6MOS

HTHR COLUM BLUE / 6-12MOS

HTHR COLUM BLUE / 12-18MOS

HTHR COLUM BLUE / 18-24MOS

ATHLETIC HEATHER / 0-3MOS

ATHLETIC HEATHER / 3-6MOS

ATHLETIC HEATHER / 6-12MOS

ATHLETIC HEATHER / 12-18MOS

ATHLETIC HEATHER / 18-24MOS

TRUE ROYAL / 0-3MOS

TRUE ROYAL / 3-6MOS

TRUE ROYAL / 6-12MOS

TRUE ROYAL / 12-18MOS

TRUE ROYAL / 18-24MOS

Storm / 0-3MOS

Storm / 3-6MOS

Storm / 6-12MOS

Storm / 12-18MOS

Storm / 18-24MOS

Red / 0-3MOS

Red / 3-6MOS

Red / 6-12MOS

Red / 12-18MOS

Red / 18-24MOS

HEATHER STONE / 0-3MOS

HEATHER STONE / 3-6MOS

HEATHER STONE / 6-12MOS

HEATHER STONE / 12-18MOS

HEATHER STONE / 18-24MOS

HEATHER MAUVE / 0-3MOS

HEATHER MAUVE / 3-6MOS

HEATHER MAUVE / 6-12MOS

HEATHER MAUVE / 12-18MOS

HEATHER MAUVE / 18-24MOS

Who it’s for: the chatterbox toddling through daycare drop-off while Dad gets the “Grandpa?” question.What it says: loud and clear—He’s Dad, not Grandpa.Why it hits: it’s funny, it’s true, and it saves the explanation (again). Sizes: 2T–5T Playground-tough: soft, durable, wash-after-wash Easy on/off: comfy fit for wiggly kiddos Photo gold: park days, preschool pics, family meetups Matchy moment: pairs perfectly with the Old Daddin’ Hat Outfit your little spokesperson—and let Dad wear the grin. Size Body length Body width 2T 15.5" 12" 3T 16.5" 13" 4T 17.5" 14" 5T 18.5" 15"

Who it’s for: the chatterbox toddling through daycare drop-off while Dad gets the “Grandpa?” question. What it says: loud and clear—He’s Dad, not Grandpa. Why it hits: it’s funny, it’s true, and it saves the explanation (again).
<ul data-start="338" data-end="588">
<li data-start="338" data-end="358">
Sizes: 2T–5T
</li>
<li data-start="359" data-end="415">
Playground-tough: soft, durable, wash-after-wash
</li>
<li data-start="416" data-end="464">
Easy on/off: comfy fit for wiggly kiddos
</li>
<li data-start="465" data-end="526">
Photo gold: park days, preschool pics, family meetups
</li>
<li data-start="527" data-end="588">
Matchy moment: pairs perfectly with the Old Daddin’ Hat
</li>
</ul>
Outfit your little spokesperson—and let Dad wear the grin.<table id="sizechart" style="width:100%; border-collapse: collapse;" border="1"><tbody>
<tr>
<th style="padding: 8px; text-align: left;">Size</th>
<th style="padding: 8px; text-align: left;">Body length</th>
<th style="padding: 8px; text-align: left;">Body width</th>
</tr>
<tr>
<td style="padding: 8px; text-align: left;">2T</td>
<td style="padding: 8px; text-align: left;">15.5"</td>
<td style="padding: 8px; text-align: left;">12"</td>
</tr>
<tr>
<td style="padding: 8px; text-align: left;">3T</td>
<td style="padding: 8px; text-align: left;">16.5"</td>
<td style="padding: 8px; text-align: left;">13"</td>
</tr>
<tr>
<td style="padding: 8px; text-align: left;">4T</td>
<td style="padding: 8px; text-align: left;">17.5"</td>
<td style="padding: 8px; text-align: left;">14"</td>
</tr>
<tr>
<td style="padding: 8px; text-align: left;">5T</td>
<td style="padding: 8px; text-align: left;">18.5"</td>
<td style="padding: 8px; text-align: left;">15"</td>
</tr>
</tbody></table>

He's Dad Not Grandpa Toddler T

Red Triblend / 2T

Red Triblend / 3T

Red Triblend / 4T

Red Triblend / 5T

PEACH TRIBLEND / 2T

PEACH TRIBLEND / 3T

PEACH TRIBLEND / 4T

PEACH TRIBLEND / 5T

OLIVE TRIBLEND / 2T

OLIVE TRIBLEND / 3T

OLIVE TRIBLEND / 4T

OLIVE TRIBLEND / 5T

ICE BLUE TRIBLND / 2T

ICE BLUE TRIBLND / 3T

ICE BLUE TRIBLND / 4T

ICE BLUE TRIBLND / 5T

GREY TRIBLEND / 2T

GREY TRIBLEND / 3T

GREY TRIBLEND / 4T

GREY TRIBLEND / 5T

BLUE TRIBLEND / 2T

BLUE TRIBLEND / 3T

BLUE TRIBLEND / 4T

BLUE TRIBLEND / 5T

Athletic Grey Triblend / 2T

Athletic Grey Triblend / 3T

Athletic Grey Triblend / 4T

Athletic Grey Triblend / 5T

Who it’s for: the big kid who keeps hearing “Is that your grandpa?” and answers with a grin.What it says: loud and clear—He’s Dad, not Grandpa.Why it hits: it’s funny, it’s true, and it saves the third explanation this week. Sizes: Youth S–XL (fits most ages ~6–14) School-day comfy: soft, breathable, tagless feel Playground-tough: durable, wash-after-wash Photo gold: spirit days, field trips, Father’s Day Matchy moment: pairs perfectly with the Old Daddin’ Hat (and the toddler tee) Outfit your built-in spokesperson—and let Dad wear the grin. Size Body length Body width YS 20 7/8" 15 1/4" YM 22 1/8" 16 1/4" YL 23 3/8 " 17 1/4" YXL 24 3/8" 18 1/4" S 20.875" M 22.125" L 23.375" XL 24.375"

Who it’s for: the big kid who keeps hearing “Is that your grandpa?” and answers with a grin. What it says: loud and clear—He’s Dad, not Grandpa. Why it hits: it’s funny, it’s true, and it saves the third explanation this week.
<ul data-start="337" data-end="636">
<li data-start="337" data-end="385">
Sizes: Youth S–XL (fits most ages ~6–14)
</li>
<li data-start="386" data-end="442">
School-day comfy: soft, breathable, tagless feel
</li>
<li data-start="443" data-end="493">
Playground-tough: durable, wash-after-wash
</li>
<li data-start="494" data-end="552">
Photo gold: spirit days, field trips, Father’s Day
</li>
<li data-start="553" data-end="636">
Matchy moment: pairs perfectly with the Old Daddin’ Hat (and the toddler tee)
</li>
</ul>
Outfit your built-in spokesperson—and let Dad wear the grin.<table id="sizechart" style="width:100%; border-collapse: collapse;" border="1"><tbody>
<tr>
<th style="padding: 8px; text-align: left;">Size</th>
<th style="padding: 8px; text-align: left;">Body length</th>
<th style="padding: 8px; text-align: left;">Body width</th>
</tr>
<tr>
<td style="padding: 8px; text-align: left;">YS</td>
<td style="padding: 8px; text-align: left;">20 7/8"</td>
<td style="padding: 8px; text-align: left;">15 1/4"</td>
</tr>
<tr>
<td style="padding: 8px; text-align: left;">YM</td>
<td style="padding: 8px; text-align: left;">22 1/8"</td>
<td style="padding: 8px; text-align: left;">16 1/4"</td>
</tr>
<tr>
<td style="padding: 8px; text-align: left;">YL</td>
<td style="padding: 8px; text-align: left;">23 3/8 "</td>
<td style="padding: 8px; text-align: left;">17 1/4"</td>
</tr>
<tr>
<td style="padding: 8px; text-align: left;">YXL</td>
<td style="padding: 8px; text-align: left;">24 3/8"</td>
<td style="padding: 8px; text-align: left;">18 1/4"</td>
</tr>
<tr>
<td style="padding: 8px; text-align: left;">S</td>
<td style="padding: 8px; text-align: left;">20.875"</td>
</tr>
<tr>
<td style="padding: 8px; text-align: left;">M</td>
<td style="padding: 8px; text-align: left;">22.125"</td>
</tr>
<tr>
<td style="padding: 8px; text-align: left;">L</td>
<td style="padding: 8px; text-align: left;">23.375"</td>
</tr>
<tr>
<td style="padding: 8px; text-align: left;">XL</td>
<td style="padding: 8px; text-align: left;">24.375"</td>
</tr>
</tbody></table>

Kids

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