Santa Koro-Sensei Assassination Classroom Ugly Christmas Sweater
Santa Koro-Sensei Assassination Classroom Ugly Christmas Sweater
Santa Koro Sensei Assassination Classroom Ugly Christmas Sweater
Santa Koro Sensei Assassination Classroom Ugly Christmas Sweater1

Santa Koro-Sensei Assassination Classroom Ugly Christmas Sweater

$39.95

Size Guide

Size Chart

SIZE LENGTH BUST SHOULDER SLEEVE
S 29.4 in 44.0 in 18.0 in 27.0 in
M 30.5 in 46.0 in 19.0 in 27.5 in
L 31.0 in 48.5 in 20.0 in 28.5 in
XL 32.0 in 51.0 in 21.5 in 29.0 in
2XL 33.0 in 53.0 in 22.5 in 30.0 in
3XL 33.5 in 55.5 in 23.6 in 31.0 in
4XL 34.5 in 58.0 in 25.0 in 31.5 in
5XL 35.0 in 60.0 in 26.0 in 32.5 in
  • Material: 95% Polyester - 5% Spandex.
  • Printing technique: dye-sublimation.
  • Coarse Needle Drawing 270g.
SIZE LENGTH BUST SHOULDER SLEEVE
S 75 cm 111 cm 45 cm 68 cm
M 77 cm 117 cm 48 cm 70 cm
L 79 cm 123 cm 51 cm 72 cm
XL 81 cm 129 cm 54 cm 74 cm
2XL 83 cm 135 cm 57 cm 76 cm
3XL 85 cm 141 cm 60 cm 78 cm
4XL 87 cm 1472 cm 63 cm 80 cm
5XL 89 cm 153 cm 66 cm 82 cm
  • Material: 95% Polyester - 5% Spandex.
  • Printing technique: dye-sublimation.
  • Coarse Needle Drawing 270g.
SIZE LENGTH BUST SHOULDER SLEEVE
2XS 15.0 in 12.0 in 11.0 in 14.0 in
XS 17.0 in 14.0 in 12.2 in 15.0 in
S 20.0 in 17.0 in 14.5 in 18.0 in
M 22.0 in 18.5 in 16.0 in 19.7 in
L 23.5 in 19.7 in 17.0 in 21.0 in
XL 27.0 in 21.0 in 18.0 in 26.0 in
  • Material: 95% Polyester - 5% Spandex.
  • Printing technique: dye-sublimation.
SIZE LENGTH BUST SHOULDER SLEEVE
2XS 39 cm 31 cm 28 cm 36 cm
XS 44 cm 36 cm 31 cm 39 cm
S 51 cm 44 cm 37 cm 46 cm
M 56 cm 47 cm 41 cm 51 cm
L 60 cm 51 cm 44 cm 54 cm
XL 69 cm 54 cm 46 cm 67 cm
  • Material: 95% Polyester - 5% Spandex.
  • Printing technique: dye-sublimation.
  • $0.00
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This February, we only do 26 pieces of this limited edition. Get it before it's gone!
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Estimated arrival: Place your order today (standard shipping method) to receive the product(s) within Sep 25 - Sep 29

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Sep 12

Sep 17 - Sep 19

Sep 25 - Sep 29

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Unleash holiday chaos with the Santa Koro-Sensei Assassination Classroom Ugly Christmas Sweater. Featuring the iconic smiley-faced teacher in festive gear, this design fuses anime brilliance with seasonal satire—perfect for fans who love humor, rebellion, and meaningful storytelling.

Santa Koro-Sensei’s Jolly Rebellion: Assassination Classroom Ugly Christmas Sweater

Koro-Sensei, the unkillable alien teacher with a heart of gold, dons a Santa suit in this irreverent twist on holiday cheer. Known for mentoring Class 3-E in assassination and empathy, his exaggerated grin now beams from a sweater that mocks conformity with flair.

Santa Koro-Sensei Assassination Classroom Ugly Christmas Sweater
Santa Koro-Sensei Assassination Classroom Ugly Christmas Sweater

The design nods to the anime’s deeper themes—education reform, youth empowerment, and moral ambiguity—wrapped in festive absurdity. Snowflakes and ornaments clash with “HARD WORK” and “WELL DONE” badges, echoing the classroom’s struggle against systemic neglect and their fight for recognition.

This sweater isn’t just fanwear—it’s a wearable critique of authority and a tribute to unconventional heroes. Whether you’re an anime enthusiast or a rebel with a cause, it’s a bold statement that humor and heart can coexist in every stitch.

Shipping Policy & Manufacturing Info

Our shirts are made when ordered. Due to the time variability of on-demand manufacturing, we offer 2 options for how quickly you want to receive your order. You can select from the following choices in checkout.

Standard Shipping ($4.99+)

  • Orders using this option generally arrive 5-10 days (U.S. orders) and it takes 2 weeks for International orders after being manufactured and shipped. (See notes below)
  • Manufacturing times for this option vary more around busier times of the year or during extreme circumstances such as covid-19 shutdowns.

Shipping and expedited manufacturing ($19.99+) (U.S. Only)

  • Orders using this option jump to the front of the manufacturing queue which can generally save a couple days (or more during busier times of the year).
  • It's highly recommended to use this option if you are ordering for a specific event or holiday.
  • Orders using this option generally arrive 2-3 days after being manufactured and shipped. (U.S. only)
  • Orders using expedited manufacturing will be printed when the next batch of orders are processed which can vary depending on seasonality and other factors.

Please Note:

  • We do not guarantee shipping or arrival dates.
  • Manufacturing during the majority of the year takes between 1-5 business days (Mon-Fri) however can take more than a week during the heaviest shopping times of the year. Extreme circumstances such as covid-19 may delay order manufacturing and/or shipping by an additional week or more.
  • All manufacturing and shipping times mentioned are just estimates and will vary.
  • Some of our popular designs may be pre-printed and may ship out faster than less commonly ordered designs/style/color combinations.