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THE SPARK NEON YELLOW ONESIE - ROYAL - LITTLE RAD THINGS

THE SPARK NEON YELLOW ONESIE - ROYAL

★★★★★ 4.9 · 1,740 reviews

“Survived 30 washes and still looks new. My toddler asks for this tee every single morning.”

Sarah K. · verified buyer

Small-batch, made for the days that become memories

Relaxed fit your kid will actually want to wear

FREE shipping on orders $75+

$20.00
Free shipping
Ships 1–2 days
30-day returns

“My son refuses to wear anything else.”

Dan - Happy LRT Customer

Pairs well with

Get your little one ready to stand out in The Spark Neon Yellow Onesie—a bold, eye-catching essential for the next generation of rad kids. Made from super-soft, 100% cotton, this onesie is designed for comfort, durability, and all-day play.

Vibrant Neon Yellow Design – Featuring a striking royal blue onesie with a neon yellow lightning bolt, perfect for little ones who love to make a statement.
Ultra-Soft & Breathable – Crafted from premium cotton, gentle on sensitive skin.
Durable & Built to Last – Holds up wash after wash, because adventure doesn’t stop.
Designed in the USA – Made with high-quality materials to ensure the best fit and feel.

Front design size scale: 
0-3M and 3-6M | 5 inches
6-12M | 6 inches
12-18M and 18-24M | 7 inches

Whether it’s tummy time, playtime, or nap time, this rad onesie brings the energy. True to size—if in doubt, size up for a little extra room to grow!


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. If between sizes, size up! DO NOT TUMBLE DRY ON HOT/WARM.