Geyer Threads

Geyer Threads

At Geyer, we believe learning should be fun—and your wardrobe can be too! We create math, science, STEM, and educational shirts that spark curiosity, start conversations, and bring a smile to your day.

Whether you’re a teacher, student, or lifelong learner, our designs are perfect for showing off your love of learning. Want a custom shirt made just for you? Email us at info@geyerinstructional.com and we’ll make it happen!

Six, Seven...Coordinate Plane, Unisex Coordinate T-Shirt Fun Math Shirt

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Now: $24.70 - $37.55
Math Bell Curve Unisex T-Shirt

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Now: $24.70 - $37.55
Math Coffee Unisex T-Shirt

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Now: $24.70 - $37.55
"In My STEM Era" Science & Rocket Tee

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Now: $24.70 - $37.55
Acuite Angle Math T-Shirt

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Now: $24.70 - $37.55
Be More Than Average Hoodie, Inspirational Sweatshirt for Motivation, Unisex Gift, Cozy Casual Wear, Perfect for Everyday Use

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Now: $53.95 - $63.73
Coffee Molecule Hug T‑Shirt — Cute Coffee Chemistry Tee

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Now: $28.23 - $51.10
Coffee Molecule Hug T-Shirt | Cute Chemistry Shirt, Gift for Coffee Lovers, Science Tee, Funny Chemistry Shirt, Softstyle Tee

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Now: $24.70 - $37.55
Cool Triangle Smile Hoodie, Fun Hooded Sweatshirt, Cute Gift for Teens, Unisex Casualwear, Pajama, Festival Fashion

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Now: $53.83 - $63.63
Creative Logic T-Shirt - Unisex Softstyle Tee, Motivational Gift, Casual Wear, Friendship Present, Educational Apparel

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Now: $24.70 - $37.55
Creepin’ It Code – A Spooky Halloween Shirt for Programmers & STEM Teachers

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Now: $24.70 - $37.55
Cute Blob Family T-Shirt, Family Gift, Cute Graphic Tee, Fun Unisex Shirt, Cartoon T-Shirt for Parents & Kids

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Now: $24.70 - $37.55
Espresso Equations My Daily Grind T-Shirt, Coffee Lover Tee, Math Nerd Gift, Teacher Appreciation Shirt, Unisex Softstyle, Casual [...]

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Now: $24.70 - $37.55
Fun Triangle With a Smile Unisex Softstyle T-Shirt, Cute Graphic Tee, Casual Wear, Gift for Geometry Lovers, Summer Outfits, Playful Apparel

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Now: $24.70 - $37.55
Funny Geometry T-Shirt, Casual Humor Tee, Gift for Math Lovers, Geeky Shirt, Unique Educational Apparel, Quirky Graphic Tee

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Now: $24.70 - $37.55
I Teach, Therefore I Sum | Fun Teacher Shirt – Education Humor Tee

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Now: $24.70 - $37.55
I'm An Acute Angle Math Sweatshirt, Unisex Gift, Cozy Casual Wear, Perfect for Everyday Use

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Now: $53.95 - $63.73
Keep Calm and Solve with STEM | STEM Encouragement T-Shirt, Science Gift, Educational Apparel, Unisex Tee

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Now: $38.88 - $51.90
Keep Calm and Solve with STEM | STEM Themed T-Shirt, Fun Science Tee, Educational Gift, Unisex Softstyle Shirt

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Now: $24.70 - $37.55
Math Enthusiast Unisex T-Shirt - Pointed in the Correct Direction Design

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Now: $24.70 - $37.55
Math Lover's Unisex T-Shirt | Rise, Shine, Solve, Drink Coffee | Great for Teachers, Students, STEM Gifts, Everyday Wear

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Now: $24.70 - $37.55
MATH RULES = The Formula for Success | Fun Teacher Shirt – Education Humor Tee

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Now: $24.70 - $37.55
Math Teacher Hoodie - Perfect Gift for Educators, Teacher Appreciation, Classroom Wear, Cozy, Stylish

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Now: $74.75 - $84.25
Math Teacher Unisex Softstyle T-Shirt, Gift for Educators, Teacher Appreciation, Back to School, Fun Classroom Shirt

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Now: $24.70 - $37.55
My Love Language: Coffee & Geometry | Perfect for Math Lovers, Coffee Enthusiasts, Gift for Birthdays, Holidays, Casual Wear

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Now: $24.70 - $37.55
Pirate-Inspired Unisex T-Shirt, Fun Gift for Cheese Lovers, Cute T-Shirt for Kids, Funny Pirate Theme Tee, Unique Birthday Gift

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Now: $24.70 - $37.55
Playful Turtle Graphic T-Shirt, Cute Animal Tee, Gift for Kids, Math Enthusiasts, Birthday Celebration, Casual Wear

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Now: $24.70 - $37.55
Powered by Coffee & Calculations Unisex T-Shirt, Math Lover Tee, Coffee Lover Gift, Funny Nerd Shirt, Gift for Teachers, Back to School

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Now: $24.70 - $37.55
Powered by Curiosity, Fueled by STEM | Fun Science Tee, Education Gift, Unisex Graphic Shirt, Kids & Adults, Birthday, School Events, Teacher Gift

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Now: $24.70 - $37.55
Real Men Marry Teachers | Fun Teacher Shirt – Education Humor Tee

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Now: $24.70 - $37.55
Science is Real. Math is Power. Tech is the Future. | Educational Gift for Students | STEM Shirt

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Now: $24.70 - $37.55
Spooky Science Fun! A “Science Is Spooktacular” Shirt Perfect for STEM Teachers

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Now: $24.70 - $37.55
STEM Inspired Unisex Softstyle T-Shirt, Science Shirt, Educational Tee, Gift for Teachers, Environmental Awareness Clothing

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Now: $24.70 - $37.55
STEM Powers The Future T-Shirt, Unisex Tee, Science Gift, Nerdy Apparel, Educational Shirt, STEM Education Clothing

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Now: $38.88 - $51.90
STEM Powers the Future | Unisex Graphic Tee | Inspirational STEM Shirt

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Now: $38.88 - $51.90
STEM T-Shirt, Problem Solvers Wear STEM Tee, Unisex Educational Shirt, Math Science Apparel, Perfect for STEM Events

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Now: $38.88 - $51.90