Love!
"My son has had this shirt for a while but when I saw it was one that Little Trouble had in Adult sizes, I had to get it for my Husband too! They love to rock them together! So cute! Husband says: Keep the adult sizes coming!🖤"
| Size | 0-6M | 6-12M | 12-18M | 18-24M | 2T | 3T | 4T | 5T | 6T | 7/8 | YS | YM | YL |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Age | 0-6M | 6-12M | 12-18M | 18-24M | 2-3 Years | 3-4 Years | 4-5 Years | 5-6 Years | 6-7 Years | 7-8 Years | 8-10 Years | 10-12 Years | 12-14 Years |
| Height (in) | up to 27 | up to 30 | 30-32 | 32-34 | 33-35 | 36-39 | 39-42 | 42-45 | 45-48 | 48-51 | 51-54 | 54-57 | 57-60 |
| Weight (lb) | up to 16 | up to 20 | 20-24 | 24-28 | 28-32 | 32-37 | 37-43 | 43-49 | 49-56 | 56-66 | 66-76 | 76-86 | 86-100 |
| Size | Baby | Toddler | Youth | Adult |
|---|---|---|---|---|
| Head Circ. | 46-50cm | 50-54cm | 54-58cm | 56-60cm |
| Age Reference | 0-2 Years | 2-5 Years | 5 and up | Adult |




FAST MAKES ME HAPPY ADULT T-SHIRT
Our best-seller and most widely shared shirt, now for grown ups who are cool like that. Made with our signature, perfectly balanced blend of organic cotton and rayon made from bamboo, for the softest everyday wear with an oversized unisex fit. Pairs perfectly with the baby, toddler, and youth sizes — because happy looks better in matching sets.
Match your mini speedster! SHOP TODDLER/YOUTH!
• OEKO-TEX® STANDARD 100 and tested for harmful substances
• Made with our signature, perfectly balanced blend of organic cotton and rayon made from bamboo
• Oversized unisex fit – runs large for a relaxed look
• Textured back print that never fades
• Matches baby, toddler, and youth sizes
Size down for less oversized.
Machine wash with other like colors. Hang dry or machine dry on low. Expect 1-2cm of shrinkage on first wash/dry but no shrinkage after that. Sizing is based on age range in the 50th percentile. If between sizes, size up!
Made from 100% Organic Cotton and Bamboo Viscous via closed-loop production!
68% Bamboo Viscous
27% Organic Cotton
5% Spandex


DESIGNED TO BE TOUGH
BY A MOM WITH FAST KIDS

EASY EXCHANGES AND
FAST SHIPPING

FREE SHIPPING ON
U.S. ORDERS OVER $100
Overall rating: 5.0 / 5 from 8 reviews.
Review topics: ["tee","shirt"].
"My son has had this shirt for a while but when I saw it was one that Little Trouble had in Adult sizes, I had to get it for my Husband too! They love to rock them together! So cute! Husband says: Keep the adult sizes coming!🖤"
— Jordan A. (5/5)
"Excellent quality and amazing service!"
— Jennifer S. (5/5)
"Literally love the material and everything about it. I did size up because I “shrink” everything but it fits great"
— Westley S. (5/5)
"The fabric quality and stretch"
— Derian (5/5)
"Good product feels good"
— Tim H. (5/5)
"Coolest and softest tee you’ll own! I wore this for my son’s birthday to match the vibe and would definitely recommend."
— Steffi D. (5/5)
"Love being able to match our little guy! These shirts are SO soft and well made"
— Brittany M. (5/5)
"Happily surprised with the softest tee in my wardrobe now. Stoked I get to match up with my little man at the skatepark, but even more stoked that it's legit a great shirt."
— Sean B. (5/5)