New Cubs Fan Onesie | Chicago Baseball Baby Onesie | Cubs Onesie Chicago

Chicago “Newest & Cutest Fan” 100% Cotton Onesie

Because it’s never too early to raise them right. 💙⚾

This Chicago “Newest & Cutest Fan” onesie is made for your tiniest team supporter. Featuring the sweetest little baseball bear geared up and ready for game day, this piece is equal parts adorable and spirited.

The soft heather gray body with classic blue raglan sleeves gives it that timeless baseball feel — like a mini vintage tee, but baby-approved. And the playful graphic? Guaranteed to steal the show (and probably a few extra snuggles).

Made from 100% breathable cotton, it’s:
• Soft against delicate baby skin
• Lightweight and comfy for all-day wear
• Perfect for naps, playtime, and first game watch parties

Whether you’re heading to the ballpark, snapping newborn photos, or just cheering from the couch, this onesie makes sure everyone knows who the newest (and cutest) fan is.