Keep Calm I’m a Ninja Kids & Adults T-Shirt – Funny Ninja Kidz TV Fan Apparel

Is your child (or inner child!) a fan of stealth, martial arts, and YouTube’s Ninja Kidz TV?

This fun “Keep calm, I’m a ninja!” graphic is perfect for aspiring ninjas of all ages. Inspired by popular kid-friendly ninja content, this design celebrates the adventurous spirit and agility of a ninja. It’s a great way to show off their (or your) ninja prowess with a touch of humor.

Why You’ll Adore This Ninja T-Shirt:

• Funny Ninja Design: Features the playful “Keep calm, I’m a ninja!” slogan, great for kids and adults.
• Premium Comfort: Crafted from 100% soft cotton for a regular fit and ultimate wearability.
• Durable Quality: Designed with twin-needle stitching, a ribbed crewneck, and dropped shoulders for lasting style.
• Versatile Style: The stylish Black Acidwash color provides a trendy backdrop for the vibrant printed graphics.

The Wash Tee is designed, manufactured and printed by Prideinapparel. It's a unisex, 90s-inspired relaxed fit with a slight dropped shoulder and roomy sleeves.

If you want to get really scientific, we have a size chart next to the size options above 👆

All Prideinappare products come from are responsible factories with ethical accreditations.

We ship in huggable, plant-based compostable mailers – because f*ck plastic!