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I Believe in Science and Santa Ugly Sweater

Size Guide

Size Chart

Size Length (inches) Bust (inches) Shoulder (inches) Sleeve (inches)
S 26 in 40 in 17 in 26 in
M 28 in 44 in 18 in 27 in
L 28 in 48 in 19 in 27 in
XL 30 in 52 in 20 in 28 in
2XL 30 in 56 in 21 in 28 in
3XL 31 in 60 in 22 in 28 in
4XL 32 in 64 in 24 in 29 in
5XL 33 in 68 in 25 in 29 in
6XL 34 in 73 in 26 in 29.1 in
SWEATER
  • Fabric: Polyester
  • Regular fit
  • Fabric Weight: 300 g/m².
  • Stitch Color: black or white, automatically matched based on patterns.
  • Care Instruction: machine wash cold with similar colors, do not bleach, tumble dry low, do not iron, do not dry clean.
Size Length (cm) Bust (cm) Shoulder (cm) Sleeve (cm)
S 67 102 42 67
M 70 112 45 68
L 72 122 48 69
XL 75 132 51 70.5
2XL 76 142 54 71
3XL 79 152 57 71.5
4XL 82 162 60 72.5
5XL 85 172 63 73
6XL 86 182 66 74
SWEATER
 
  • Fabric: Polyester
  • Regular fit
  • Fabric Weight: 300 g/m².
  • Stitch Color: black or white, automatically matched based on patterns.
  • Care Instruction: machine wash cold with similar colors, do not bleach, tumble dry low, do not iron, do not dry clean.
Size Length (inches) Chest (inches) Suggested Height (inches)
Toddler 2T 14 in 11 in 33-35 in
Toddler 3T 15 in 12 in 36-39 in
Toddler 4T 16 in 13 in 39-41 in
Toddler 4 16.5 in 13.5 in 42-44 in
Toddler 5 17 in 14 in 45-47 in
Youth XS 18 in 15 in 48-50 in
Youth S 19 in 15.5 in 50-54 in
Youth M 21 in 16 in 54-58 in
Youth L 23 in 18 in 58-62 in
Youth XL 25 in 19 in 62-68 in
SWEATER
  • Fabric: Polyester
  • Regular fit
  • Fabric Weight: 300 g/m².
  • Stitch Color: black or white, automatically matched based on patterns.
  • Care Instruction: machine wash cold with similar colors, do not bleach, tumble dry low, do not iron, do not dry clean.
Size Length (cm) Chest (cm) Suggested Height (cm)
Toddler 2T 36 cm 28 cm 84-89 cm
Toddler 3T 38 cm 31 cm 91-99 cm
Toddler 4T 41 cm 33 cm 99-104 cm
Toddler 4 42 cm 35 cm 107-112 cm
Toddler 5 43 cm 36 cm 114-119 cm
Youth XS 46 cm 38 cm 122-128 cm
Youth S 48 cm 39.5 cm 128-137 cm
Youth M 53 cm 41 cm 137-147 cm
Youth L 58 cm 46 cm 147-158 cm
Youth XL 63 cm 48 cm 158-172 cm
SWEATER
 
  • Fabric: Polyester
  • Regular fit
  • Fabric Weight: 300 g/m².
  • Stitch Color: black or white, automatically matched based on patterns.
  • Care Instruction: machine wash cold with similar colors, do not bleach, tumble dry low, do not iron, do not dry clean.
  • $0.00
Quantity:
Estimated arrival: Place your order today (standard shipping method) to receive the product(s) within Nov 27 - Dec 01

Nov 13

Nov 18 - Nov 20

Nov 27 - Dec 01

SKU: OKCV0I0J Categories: ,

I Believe in Science and Santa Ugly Sweater: The Smartest Holiday Look of the Season

When holiday cheer meets brainy humor, you get the I Believe in Science and Santa Ugly Sweater. This hilarious and clever design combines the magic of Christmas with a dash of geeky pride, perfect for anyone who loves both lab experiments and festive lights.

I Believe in Science and Santa Ugly Sweater
I Believe in Science and Santa Ugly Sweater

Featuring Santa Claus in full lab gear, complete with goggles and a bubbling green flask, the I Believe in Science and Santa Ugly Sweater turns the classic Christmas icon into a quirky scientist. The bold pixel-art design, surrounded by snowflakes and Christmas trees, pops vividly against the bright red background. With green cuffs and collar adding the final touch, it feels cheerful yet witty, a balance that makes it stand out at any holiday party, family dinner, or office gathering.

This sweater first caught attention during the wave of “science-themed Christmas” trends seen across social media and pop culture events. It quickly became a must-have for anyone who believes that curiosity, knowledge, and a bit of holiday spirit can go hand in hand. Fans love wearing it to themed parties, Christmas lectures, and fun “Ugly Sweater Contests” where it never fails to draw smiles.

More than just a funny design, the I Believe in Science and Santa Ugly Sweater celebrates two kinds of wonder, the joy of discovery and the warmth of Christmas magic. It’s a reminder that believing in science doesn’t mean giving up on childhood dreams; it means embracing both logic and love for life’s mysteries. Made from soft, breathable fabric with detailed stitching, this sweater is comfortable enough to wear all day long from morning coffee to late-night cocoa. Its relaxed fit makes it ideal for all body types and perfect for layering during chilly December evenings.

The I Believe in Science and Santa Ugly Sweater isn’t just clothing; it’s a statement. It bridges fun and intellect, proving that you can be festive and clever at the same time. Wear it proudly to your next holiday event and watch how it instantly sparks conversations and laughter. After all, this season is about joy and maybe just a little chemistry between you and Santa.

How long does it take for my order to arrive?

  • We need 3 - 5 business days to process your order and send it out (not including weekend and holidays)
  • Your order will arrive approximately 5-7 business days after it's shipped (except wooden products). We use different shipping partners, but the final delivery is usually via USPS.
  • For international orders please allow 2-4 weeks for delivery. The final delivery is usually via your local postal service.

Shipping time for 3D Printed Products:

  • United shipping time: 7-14 Business days
  • International Shipping time: 15-20 Business days

Shipping time for Canvas Wall Art:

Economy

  • $7.99 for order price under 50$
  • $9.99 for order price over 50$ and under 100$
  • $14.99 for order price over 10$ and under 200$
  • Free shipping for order price over 200$

Ground

  • $16.95 for order price under 49$
  • $21.95 for order price over 50$ and under 69$
  • $29.95 for order price over 70$ and under 139$
  • $49.95 for order price over 140$

2 Day

  • $24.95 for order price under 49$
  • $34.95 for order price over 50$ and under 69$
  • $49.95 for order price over 70$ and under 139$
  • $79.95 for order price over 140$

Overnight

  • $49.95 for order price under 49$
  • $59.95 for order price over 50$ and under 69$
  • $89.95 for order price over 70$ and under 139$
  • $139.95 for order price over 140$

Here’s how we break down our shipping prices:

  • $7.99 for order price under $49.99
  • $9.99 for orders from $50 to $99.99
  • $14.99  for orders from $100 to $199.99
  • Free Shipping for orders over $200
Shipping time for Items shipping internationally (UK, CA, AU):
  • $9.99 for an order price under $49.99
  • $14.99 for orders from $50 to $99.99
  • $16.99 for orders from $100 to $199.99
  • $18.99 for orders from $200 to $399.99
  • Free ship for orders over $400