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Kids I Had A BIG DAY Running Long Sleeve

Regular price $34.00

Shipping calculated at checkout

Please reference size chart at the bottom of the description.

Spend $150 to get free shipping

Roll out the red carpet and cue the fanfare, the "Kids I Had A BIG DAY Running Long Sleeve" has arrived, and it's here to party like it's recess all day long! Crafted from the softest 100% Airlume combed and ringspun cotton, this shirt is as soft as a bunny – a really athletic bunny who loves a good sprint.

In stealthy black for the secret agents on a mission to tag everyone in sight, or the deep navy for future admirals of the playground fleet, this long sleeve is ready for whatever dash, dart, or jog your little runner throws at it. The classic crew neck says, "I'm serious about my running," while the ribbed cuff adds, "but I also play a mean game of freeze tag."

This isn't just a shirt; it's a wearable trophy for all those times they raced the school bus down the street (and won), out-sprinted their shadow, or just made it around the block without getting distracted by a curious squirrel. "I Had A BIG DAY Running" isn't merely a statement; it's a story - a saga of stubby legs pushing past limits and pint-sized hearts beating in victory.

So whether they've just crossed the finish line of their first 100-meter dash or simply ran up and down the hallway enough times to power a small city, this long sleeve is for them. It's a high-five for their hustle and a nod to their never-ending energy that somehow, miraculously, seems to multiply by the day.

• 100% Airlume combed and ring-spun cotton
• Fabric weight: 4.2 oz/yd² (180 g/m²)
• Regular fit
• Side-seamed construction
• Ribbed cuff

This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!

Size guide

  LENGTH (inches) WIDTH (inches)
S 21 ⅛ 15 ¼
M 22 ¼ 16 ¼
L 23 ⅜ 17 ¼
  LENGTH (cm) WIDTH (cm)
S 53.7 38.7
M 56.5 41.3
L 59.4 43.8

Return Policy FAQs


We don’t offer returns and exchanges, but if there’s something wrong with your order, please let us know by contacting us using our contact form.


Refunds are only offered to customers that receive the wrong items or damaged items. If any of these apply, please contact us at with photos of wrong/damaged items and we’ll sort that out for you.


At this time, we don't offer exchanges. If you’re unsure which size would fit better, check out our sizing charts—we have one for every item listed on our store, in the product description section. Though rare, it's possible that an item you ordered was mislabeled. If that’s the case, please let us know at within a week after receiving your order. Include your order number and photos of the mislabeled item, and we’ll send you a new one, or issue a refund!

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