My favorite shirt. I love
"My favorite shirt. I love this long sleeve top for my son. The quality is really nice. The fit is great and I love the flames design on the shirt. So so cute!"
| 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 |



SPEED FREAKS LONG SLEEVE
For the kids who run faster, laugh louder, and color inside AND outside the lines.
Featuring our hand-lettered flame font front hit and bold green-to-orange gradient flames racing up both sleeves, this one brings the speed even when they’re standing still. It’s loud in the best way—fun, fearless, and unmistakably Little Trouble.
Made from our signature bamboo viscose + organic cotton blend, it’s insanely soft, breathable, and built for all-day wear. No stiffness, no scratch—just comfort that keeps up with kids who don’t slow down.
Made for the little hell-raisers who know being weird is what makes them cool (and fast).
Fast kids only. 🏁
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! DO NOT TUMBLE DRY ON HOT/WARM.


DESIGNED TO BE TOUGH
BY A MOM WITH FAST KIDS

EASY EXCHANGES AND
FAST SHIPPING

FREE SHIPPING ON
U.S. ORDERS OVER $120
Overall rating: 5.0 / 5 from 26 reviews.
The Speed Freaks Long Sleeve is praised for its amazing quality and awesome design. Customers highlight its softness, breathability, and comfort, making it ideal for active kids. The unique hand-lettered font and vibrant gradient flames add a fun, fearless touch.
Review topics: ["quality","material","design","shirt","fit"].
"My favorite shirt. I love this long sleeve top for my son. The quality is really nice. The fit is great and I love the flames design on the shirt. So so cute!"
— Vanessa C. (5/5)
"So happy with this quality and style!"
— Sophie (5/5)
"Amazing quality"
— Tatum P. (5/5)
"Love!"
— Grizz (5/5)
"My boys always get compliments when they wear this with the matching flame shorts!"
— Stephanie L. (5/5)
"I didn't see the shirt when I was shopping for my son for winter last year. When I went to their website to see any new drops, I saw this shirt and my son had to have it! Little Trouble's shirts are beyond soft and graphics never peel or fade!"
— Jordan A. (5/5)
"Popular shirt among his friends. The fits well and the flame letter design is amazing."
— Angel T. (5/5)
"The perfect fit and colors for a cool kid 🖤"
— Lorissia B. (5/5)
"This long sleeve shirt! This is one I didn't see when I made his winter order last year. My son was excited to see a new long sleeve shirt on LT'S website! He can't wait to wear this one too! So cute! All of LT's shirts are buttery soft and graphics don't peel! Obsessed!"
— Jordan A. (5/5)
"Material is so soft and great quality. I’m used to having to size up for my 98 percentile toddler and we never have to with this brand. Everything always fits so true to size!"
— Alicia D. (5/5)