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"The Long Explanation" Unisex Longsleeve T-shirt
"The Long Explanation" Unisex Longsleeve T-shirt - the graphic up close
"The Long Explanation" Unisex Longsleeve T-shirt
"The Long Explanation" Unisex Longsleeve T-shirt
"The Long Explanation" Unisex Longsleeve T-shirt
"The Long Explanation" Unisex Longsleeve T-shirt
"The Long Explanation" Unisex Longsleeve T-shirt
"The Long Explanation" Unisex Longsleeve T-shirt
"The Long Explanation" Unisex Longsleeve T-shirt
"The Long Explanation" Unisex Longsleeve T-shirt

"The Long Explanation" Unisex Longsleeve T-shirt

Original designs you won't find anywhere else

For the person who asks how it works and actually wants the answer.

From$38.95 USD

+ $2.99 shipping · $1.99 for 2 · free with 3+ items

Buy 3+, save 15% on any mix of designs

Earn 2% back in store credit (from $0.78) How it works

A visitor with a backpack stares into a giant reactor full of copper coils and blue pipes, and the lettering says exactly what they are thinking.

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PLACEMENTFront + Back print

Model is 6′2″ (189 cm) and wears size M.

Free size exchange on your first order · How it works

Designed in Korea
Sharp, lasting print
Printed near you
Estimated delivery: Nov 16 – Dec 2 Weekends are excluded; public holidays, customs and remote-area delivery may extend these estimates.

Not fast fashion

Original artwork you won't find on marketplaces. Every design is drawn in-house.
A name-brand garment. Printed on Gildan, not an unbranded copy.
Ships from the US. Tracked delivery.
Free size exchange on your first order. Wrong size? We send the right one, free
If it arrives wrong, we fix it. Free reprint or refund for damage or misprints
Secure checkout — payments encrypted and processed by Stripe

At a glance

Who it's for
Science enthusiasts, teachers, or anyone who appreciates detailed explanations and quirky humor
Main benefit
Classic unisex long sleeve with a detailed graphic of a visitor observing a reactor and bold text for science humor
Fit
Classic unisex fit with rib-knit cuffs and taped neck and shoulders.
Material
Solid colours are 100% cotton; fibre content can vary by colour. Heavyweight 6.0 oz/yd² (203 g/m²) jersey.
Care
Machine wash cold, inside out, on a gentle cycle with like colours. Use non-chlorine bleach only when needed; tumble dry low or hang dry.

“The Long Explanation” — Unisex Longsleeve T-shirt

Classic unisex fit with rib-knit cuffs and taped neck and shoulders. Solid colours are 100% cotton; fibre content can vary by colour. Heavyweight 6.0 oz/yd² (203 g/m²) jersey.

Design story & product details

The only open space in the drawing is the narrow strip where Yes, I Want stands in tall navy letters. Everything else is machine: copper coils, blue pipes and a ribbed column inside a vast reactor chamber, with a visitor in a cap and backpack leaning on the railing, ready to hear every detail.

On this long-sleeve tee, The Long Explanation comes in hatched cream capitals that read like an old engraving, and that is the whole joke. It suits a science teacher who never gives the short answer.

Size chart

Unisex Long Sleeve T-Shirt · classic unisex fit, 6 oz cotton — garment laid flat, in / cm

SizeChestLengthSleeve
S18" 45.7 cm29" 73.7 cm32.5" 82.6 cm
M20" 50.8 cm30" 76.2 cm34" 86.4 cm
L22" 55.9 cm31" 78.7 cm35.5" 90.2 cm
XL24" 61 cm32" 81.3 cm37" 94 cm
2XL26" 66 cm33" 83.8 cm38.5" 97.8 cm

Manufacturer specification; allow a tolerance of about 1 in (2.5 cm). Chest is measured pit to pit, length from the highest point of the shoulder.


Product details

Materials & fit

Thick, durable cotton that layers well and keeps its shape wash after wash.

Solid colours are 100% cotton; fibre content can vary by colour. Heavyweight 6.0 oz/yd² (203 g/m²) jersey.

Classic unisex fit with rib-knit cuffs and taped neck and shoulders.

Print placement

Artwork on the front and the back, as shown in the photos.

Care

  • Machine wash cold, inside out, on a gentle cycle with like colours.
  • Use non-chlorine bleach only when needed; tumble dry low or hang dry.
  • Do not iron the print and do not dry clean.

Delivery & returns

Designed in Korea. Where it is printed depends on where it goes: the US, Europe, Canada, Australia and New Zealand are printed inside the region (about 4-10 business days, no import duty); South America, Mexico, Turkey, Armenia and Azerbaijan are printed by our partners abroad and shipped internationally (2-4 weeks, import duty paid on delivery); Korea, Japan and every other country are made in Korea and shipped from Korea with tracking (some hoodies and sweatshirts for Japan are printed in Japan). The estimate for your country is shown at checkout. If it arrives damaged or misprinted, tell us within 7 days and we reprint or refund it. First order and the size is wrong? We send the right size free, shipping included.