Mr. Lindsay Certified Six Seveeennn T-Shirt

How many times can a student say their favorite number before the teacher loses it?
About sixseveeennnn.

They say it. They chant it. They stretch it out until every teacher sighs… 

This t-shirt makes the Gen Alpha obsession official—complete with Mr. Lindsay’s certified logo on the back. It’s perfect for kids who can’t stop saying it and teachers who want to join in. Hey, if you can’t stop it, rock it!

Features:

• Solid colors: 100% ring-spun cotton for everyday comfort. Heather blends: 35%/65% ring-spun cotton and polyester. Sport Grey & Antique: 90%/10%
• Unisex fit for everyday wear
• Tear-away label for comfort, twill tape for durability
• Tumble dry: low heat. Iron: low heat; Machine wash: cold (max 90F), with similar colors. Do not dryclean. Do not bleach.

Why You’ll Love It

• Kids can wear the word that's low-key everywhere rn.
• Teachers and Parents can embrace the chaos with style.
  
• It's Certified Cool — Mr. Lindsay said this one slaps!

Join the biggest middle school trend of 2025! Grab your Mr. Lindsay Certified Six Seveeennn T-Shirt today!  Turn a viral word into a moment of connection and show you’re in on the fun.