Pi Sweatshirts & Hoodies

1000+ items

Cala Claas Agricultural aPi Seclusion Premium Oversized Sweatshirt

CamperOnLine

$53.75

~~$71.67~~ (25% off)

Pi Symbol Sketch Premium Oversized Sweatshirt

SymbolGrafix

$46.50

~~$62.00~~ (25% off)

Euler's Number Digits Premium Oversized Hoodie

barkleysdesigns

$41.40

~~$69.00~~ (40% off)

1154 Digits of Pi Premium Oversized Hoodie

Marder Made

$41.40

~~$69.00~~ (40% off)

Chibi Stitch Pi-ka & Toothless Classic T-Shirt Pullover Sweatshirt

WADESUMNER

$31.45

~~$41.94~~ (25% off)

I'm sec c and I know it (math edition) Pullover Hoodie

scienceisfunny

$32.16

~~$42.89~~ (25% off)

Pi, π, spiral, Science, Mathematics, Math, Irrational Number, Sequence Premium Oversized Hoodie

nitty-gritty

$48.13

~~$80.21~~ (40% off)

Pi Symbol Sketch Premium Oversized Sweatshirt

SymbolGrafix

$46.50

~~$62.00~~ (25% off)

Worcester Polytechnic Institute WPI Pi Symbol Premium Oversized Hoodie

Bookish Blossom

$41.40

~~$69.00~~ (40% off)

Pi Day Number Math Symbol Cat Lover Geek Premium Oversized Hoodie

AnnSign

$51.75

~~$86.25~~ (40% off)

Rainbow Pi Day Vintage Retro Natinoal Pi Day Premium Oversized Sweatshirt

Adolfo114

$46.50

~~$62.00~~ (25% off)

Pi to 1000 digits Premium Oversized Sweatshirt

Koolkati3

$46.50

~~$62.00~~ (25% off)

Magnum Christmas Sweater Premium Oversized Sweatshirt

MostlyMagnum

$44.56

~~$59.42~~ (25% off)

Magnum since 1980 Premium Oversized Hoodie

chillstudio

$41.40

~~$69.00~~ (40% off)

Be Rational Get Real Imaginary Math Pi Premium Oversized Hoodie

TheShirtYurt

$39.61

~~$66.01~~ (40% off)

Funny Pie Style T-Shirt-Pi Day Shirts for Math Geeks Premium Oversized Sweatshirt

evaspark

$46.50

~~$62.00~~ (25% off)

Debian Premium Oversized Sweatshirt

simontals

$53.86

~~$71.82~~ (25% off)

Pi Number Math Symbol Science Orbit Geek Nerd Premium Oversized Hoodie

AnnSign

$51.75

~~$86.25~~ (40% off)

Pi Christmas Math Science Algebra Premium Oversized Hoodie

elderberry

$41.40

~~$69.00~~ (40% off)

Pi Chi Omega 75 Years! Pullover Hoodie

pichiomega

$35.09

~~$46.79~~ (25% off)

Mathlete Mathletic Department PI 3.14 Math Calculus Puns Pullover Hoodie

Hananiah Merch

$33.63

~~$44.84~~ (25% off)

Inspire Inspirational Pi Symbol Premium Oversized Hoodie

TheShirtYurt

$39.61

~~$66.01~~ (40% off)

Happy Pi day 3.14 Pi Day Math Lover Teacher mathematics Premium Oversized Hoodie

Tigerr3g

$44.85

~~$74.75~~ (40% off)

Cat Pi Number Math Symbol Lover Geek Nerd Premium Oversized Sweatshirt

AnnSign

$58.13

~~$77.51~~ (25% off)

Pi Number Math Symbol Space Orbit Geek Nerd Premium Oversized Hoodie

AnnSign

$51.75

~~$86.25~~ (40% off)

Magnum PI New Sunset Premium Oversized Sweatshirt

Smpritch87

$46.50

~~$62.00~~ (25% off)

A Slice of Pi Premium Oversized Hoodie

Garaga

$41.40

~~$69.00~~ (40% off)

Euler is cool Premium Oversized Sweatshirt

spatulacity

$46.50

~~$62.00~~ (25% off)

Pi Chi Omega Denver Pullover Sweatshirt

pichiomega

$31.45

~~$41.94~~ (25% off)

Raspberry Pi Premium Oversized Hoodie

Redstrawberry13

$43.13

~~$71.88~~ (40% off)

Pi Symbol Sketch Premium Oversized Sweatshirt

SymbolGrafix

$46.50

~~$62.00~~ (25% off)

Raspberry Pi Pico Art Premium Oversized Hoodie

cjnimoy

$41.40

~~$69.00~~ (40% off)

Magnum Pi - Hawaii Premium Oversized Hoodie

BadgerofWater

$41.40

~~$69.00~~ (40% off)

Pi Symbol Sketch White Premium Oversized Hoodie

SymbolGrafix

$41.40

~~$69.00~~ (40% off)

Apple Pi 3.14 Premium Oversized Sweatshirt

mwagie

$46.11

~~$61.49~~ (25% off)

I Love π Math Symbol Number Day Geek Premium Oversized Sweatshirt

AnnSign

$58.13

~~$77.51~~ (25% off)

ADHD butterfly symbol (medium) Premium Oversized Sweatshirt

Optimist Jenna: Neurodivergent Designs

$46.50

~~$62.00~~ (25% off)

Funny Pi Day A Slice Of Pi Chart Math Teacher Student School Premium Oversized Hoodie

charissamo77

$48.30

~~$80.50~~ (40% off)

Island Hoppers Magnum PI Premium Oversized Sweatshirt

Alema Art

$51.54

~~$68.72~~ (25% off)

MATH! Premium Oversized Sweatshirt

BessoChicca

$46.50

~~$62.00~~ (25% off)

Poodle Perfect Pi Companion - Mathematical Equation Dog Design Premium Oversized Sweatshirt

PunnyPawsShop

$46.50

~~$62.00~~ (25% off)

Pi Day Funny Premium Oversized Hoodie

artworkbyrihen

$45.20

~~$75.33~~ (40% off)

Vintage Don't Be Irrational Pi Day For Math Teacher Science Premium Oversized Hoodie

ALI-STORE-4Y

$44.85

~~$74.75~~ (40% off)

Pi Day Number Math Symbol Cat Geek Nerd Premium Oversized Hoodie

AnnSign

$51.75

~~$86.25~~ (40% off)

Magnum pi - Tom Selleck Premium Oversized Sweatshirt

Alkantara80

$52.31

~~$69.75~~ (25% off)

Funny Pi Day Quote - Pi Has An End Fight Me Pie Day Premium Oversized Hoodie

Theparticular

$39.33

~~$65.55~~ (40% off)

Pi symbol for Pi day Lightweight Hoodie

FrictionMaxxing

$33.59

~~$41.99~~ (20% off)

Magnum pi - Tom Selleck Premium Oversized Hoodie

KelsoBob

$41.40

~~$69.00~~ (40% off)

A Slice of Pi Premium Oversized Hoodie

Garaga

$41.40

~~$69.00~~ (40% off)

Godot - Nodes Premium Oversized Hoodie

Solo Geek ‎

$41.75

~~$69.58~~ (40% off)

Pi Digits Premium Oversized Sweatshirt

lemonsugarwater

$46.50

~~$62.00~~ (25% off)

Rebooted Magnum P.I Black & White Streetwear Design Premium Oversized Sweatshirt

Natalie Eve Austin

$46.50

~~$62.00~~ (25% off)

Original Pi Chi Omega Logo Premium Oversized Hoodie

pichiomega

$41.40

~~$69.00~~ (40% off)

Magnum P.I Premium Oversized Sweatshirt

Alkantara80

$52.31

~~$69.75~~ (25% off)

Tom Selleck Premium Oversized Sweatshirt

Sharlaneill

$52.31

~~$69.75~~ (25% off)

Pi Premium Oversized Hoodie

BoKev

$37.95

~~$63.25~~ (40% off)

Captain Philippines! (Grunge White Sun) Premium Oversized Sweatshirt

IsdaMan

$46.50

~~$62.00~~ (25% off)

Pi Day Pi Letter Stereoscopic Style Premium Oversized Sweatshirt

Go-Fun

$50.38

~~$67.17~~ (25% off)

Sierpinski, Triangle, Mathematics, Fractal, Math, Geometry Premium Oversized Sweatshirt

nitty-gritty

$54.06

~~$72.08~~ (25% off)

I Love Pie - Funny Pi Day & Math Lover Pullover Hoodie

Bandikonsalez

$35.09

~~$46.79~~ (25% off)

Thomas Magnum - 80s design Premium Oversized Sweatshirt

BlueDoctor

$46.50

~~$62.00~~ (25% off)

King Kamehameha Unlock Your Inner Magnum PI with Redbubble's King Magnum Merchandise Premium Oversized Sweatshirt

MagnumDesigns

$58.13

~~$77.51~~ (25% off)

Rebooted Magnum P.I TC_s _amp_ Shammy_s Island Hopper Design Premium Oversized Hoodie

Alkantara80

$46.58

~~$77.63~~ (40% off)

Pi Number - Pi Day π spiral Premium Oversized Sweatshirt

vladocar

$45.57

~~$60.76~~ (25% off)

Happy PI Day design Premium Oversized Hoodie

bojan17779

$41.40

~~$69.00~~ (40% off)

Pi Day Dinosaur T-Rex Shirt Pi Day Math Gift Kids Teacher Premium Oversized Sweatshirt

Hananiah Merch

$44.56

~~$59.42~~ (25% off)

Pi Digits Spiral — Still Not Finished Premium Oversized Hoodie

CalmWorldShop

$37.95

~~$63.25~~ (40% off)

3.14 Pi mirrors Pie Premium Oversized Sweatshirt

24FAHSION

$77.50

~~$103.34~~ (25% off)

Pi Number Math Symbol Science Space Orbit Geek Premium Oversized Sweatshirt

AnnSign

$58.13

~~$77.51~~ (25% off)

Mathlete Premium Oversized Sweatshirt

FengHua

$48.44

~~$64.59~~ (25% off)

I Ate Some Pie And It Was Delicious I Ate Some Pi Math Premium Oversized Hoodie

ZOUBAH

$40.02

~~$66.70~~ (40% off)

I teach to inspire Premium Oversized Hoodie

Mesyo

$103.50

~~$172.50~~ (40% off)

I love math Funny Gift Premium Oversized Hoodie

GoldenDov

$41.40

~~$69.00~~ (40% off)

Snoopy Magnum p.i. Premium Oversized Hoodie

ChunkByChunk

$36.57

~~$60.95~~ (40% off)

Zeus, Apollo, Kill! Premium Oversized Hoodie

Alkantara80

$46.58

~~$77.63~~ (40% off)

Pi Symbol Spiral Number Pi Day Premium Oversized Hoodie

Eng-Sun

$41.40

~~$69.00~~ (40% off)

Mathlete Mathletic Department Math PI Premium Oversized Sweatshirt

Hananiah Merch

$44.56

~~$59.42~~ (25% off)

Magnum Pi Magnum PI - Island Hoppers Premium Oversized Hoodie

Alkantara80

$46.58

~~$77.63~~ (40% off)

forza motorsport Zipped Hoodie

NCNGDESIGN

$34.97

~~$43.71~~ (20% off)

Captain Philippines! (For Blue Shirts Only) Premium Oversized Sweatshirt

IsdaMan

$46.50

~~$62.00~~ (25% off)

Pi Chi Omega at PestWorld 2023 Premium Oversized Sweatshirt

pichiomega

$46.50

~~$62.00~~ (25% off)

Magnum PI Premium Oversized Sweatshirt

stevanyance

$51.54

~~$68.72~~ (25% off)

Cutie Pie Premium Oversized Sweatshirt

DocDesigns

$50.38

~~$67.17~~ (25% off)

Magnum PI VM02 Da Nang Design -Get the Look with Magnum PI - Vietnam War Premium Oversized Sweatshirt

MagnumDesigns

$58.13

~~$77.51~~ (25% off)

Pi Day Graphic Symbol Premium Oversized Sweatshirt

Marianne Campolongo

$53.09

~~$70.79~~ (25% off)

Harry Banner Basic Premium Oversized Sweatshirt

SJHorsfall

$42.63

~~$56.84~~ (25% off)

Pi 3.14 Number Symbol Math Science Premium Oversized Hoodie

ValerieRodrigue

$37.95

~~$63.25~~ (40% off)

Pi Day 2025 Pi 500 Digits Premium Oversized Sweatshirt

pi-day

$48.44

~~$64.59~~ (25% off)

Euler's formula, complex numbers and math Premium Oversized Sweatshirt

NoetherSym

$46.50

~~$62.00~~ (25% off)

Magnum PI Premium Oversized Hoodie

Fgejoo2845

$44.85

~~$74.75~~ (40% off)

Become a member.Get 25% off your first order.Plus other neat perks and exclusive savings to help you find the very thing.

Clothing

Sweatshirt

Pi hoodies and sweatshirts are expertly printed on ethically sourced, sweatshop-free apparel and available in a huge range of styles, colors and sizes. If you like your hoodies baggy, go two sizes up.

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Pi Sweatshirts & Hoodies

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