Mr. Lindsay Certified Six Seveeennn Crewneck Sweatshirt

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 sweatshirt 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:

• Blend of 50% cotton and 50% polyester; Heather Sport colors: 60% polyester, 40% cotton
• Cozy medium-heavy (8.0 oz/yd²fabric for all-day comfort
• Classic Unisex fit, crew neck ribbed collar that keeps its shape
• No side seams = clean, smooth look
• Soft, tear-away label (no scratchy tags)
• Adult sizing — perfect for students + teachers
• Easy Care: Machine wash cold (max 90 F); Non-chlorine bleach only; Tumble dry low; Do not iron; Do not dry clean

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 sweatshirt today!  Turn a viral word into a moment of connection and show you’re in on the fun.