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Short Sleeves

T-Shirts and other Short Sleeved tops for the top half of your body.

89 products

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Killer Acid Dusk Til Dawn Vintage T-Shirt front product view

Dusk Til Dawn Vintage T-Shirt

$30.00 $40.00

  • NEW

Killer Acid Mushrooms Are My Friends Vintage T-Shirt front product view

Mushrooms Are My Friends Vintage T-Shirt

$40.00

  • NEW

Killer Acid Cretaceous Cosmonauts T-Shirt front product view

Cretaceous Cosmonauts T-Shirt

$40.00

  • NEW

Killer Acid Black Wavy Cat T-Shirt front product view

Black Wavy Cat T-Shirt

$40.00

  • NEW

Brown Cat Patch Striped T-Shirt - T-Shirts

Retro Stripe T-Shirt

$50.00
Front and back product shot on white background

Results May Vary Pink Acid Wash T-Shirt

$40.00

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Wavy Cat Deluxe Crystal Wash T-Shirt - T-Shirts

Wavy Cat Deluxe Crystal Wash T-Shirt

$30.00 $50.00
Front flat lay showing crystal wash with heads pattern

Purple Heads Deluxe Crystal Wash T-Shirt

$50.00
Front flat lay showing neon dog design

Dog Daze Neon Black T-Shirt

$40.00

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Surf's Up Deluxe Crystal Wash T-Shirt - T-Shirts

Surf's Up Deluxe Heavyweight T-Shirt

$35.00 $50.00

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Spaced Out Deluxe Crystal Wash T-Shirt - T-Shirts

Spaced Out Deluxe Heavyweight T-Shirt

$35.00 $50.00
Front flat lay showing haunted house design

Haunted House Glow in the Dark T-Shirt

$40.00
Killer Acid Dog Daze Purple T-Shirt front product view

Dog Daze Purple T-Shirt

$40.00
Killer Acid Dose the World T-Shirt front product view

Dose the World T-Shirt

$40.00

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Killer Acid Microdose T-Shirt front product view

Microdose T-Shirt

$30.00 $40.00
Front flat lay showing No Bad Trips design

No Bad Trips Vintage Wash T-Shirt

$40.00

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Killer Acid Nature is Weird Green T-Shirt front product view

Nature is Weird Green T-Shirt

$30.00 $40.00

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Front flat lay on colored background

Mushrooms Are My Friends T-Shirt

$30.00 $40.00
Front flat lay showing Cheshire cat design on purple

Cheshire Vintage T-Shirt

$40.00
Front flat lay on light background

Head in the Clouds T-Shirt

$40.00

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Garden of Your Mind T-Shirt - T-Shirts

Garden of Your Mind T-Shirt

$25.00 $40.00

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Front and back product shot

Orange Sunshine T-Shirt

$25.00 $40.00
Front flat lay on colored background

Take a Hike Tan T-Shirt

$40.00
Crackin' Balloons T-Shirt

Crackin' Balloons T-Shirt

$35.00

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Dog in Me T-Shirt - T-Shirts

Dog in Me T-Shirt

$25.00 $35.00
Goose MSG 2025 Concert T-Shirt - T-Shirts

Goose MSG 2025 Concert T-Shirt

$50.00

  • Save 38%

Kurt Vile T-Shirt - T-Shirts

Kurt Vile T-Shirt

$25.00 $40.00
Pink and green jacquard-knit stripe t-shirt with wavy light blue "FEEL GOOD" puff-printed chest graphic.

Feel Good Knit T-Shirt

$50.00

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Front flat lay showing art shop design

Killer Acid Art Shop T-Shirt

$30.00 $40.00

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Take the High Road T-Shirt - T-Shirts

Take the High Road T-Shirt

$30.00 $40.00

  • Save 43%

Keep it Stupid T-Shirt - T-Shirts

Keep It Stupid T-Shirt

$20.00 $35.00

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Green cotton t-shirt with a coiled snake made of smoke, a bong, and "DON'T SMOKE MY WEED" text.

Don't Smoke My Weed Green T-Shirt

$20.00 $35.00

  • Save 43%

Don't Smoke My Weed T - Shirt - T - Shirts

Don't Smoke My Weed T-Shirt

$20.00 $35.00

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Black cotton "Too High to Die" t-shirt with a green and grey skeleton in a coffin design.

Too High to Die T-Shirt

$20.00 $35.00

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Field Trip T-Shirt - T-Shirts

Field Trip T-Shirt

$30.00 $40.00
Front flat lay showing all-over mushroom pattern

Mushroom Friends Button Up

$70.00

  • Save 50%

Spaced Out T-Shirt - T-Shirts

Spaced Out T-Shirt

$20.00 $40.00

  • Save 34%

Rollin' Stoned T-Shirt - T-Shirts

Rollin' Stoned T-Shirt

$25.00 $38.00

  • Save 34%

Drug Test Tshirt - T-Shirts

Drug Test T-Shirt

$25.00 $38.00

  • Save 43%

Killer Acid Official Basketball T - shirt - T - Shirts

Killer Acid Official Basketball T-Shirt

$20.00 $35.00

  • Save 29%

It's Not My Day to Care T-Shirt - T-Shirts

Not My Day to Care T-Shirt

$25.00 $35.00
Greetings from New Mexico T - Shirt - T - Shirts

Greetings from New Mexico T-Shirt

$35.00
Front flat lay showing character artwork

Pay No Mind Vintage Wash T-Shirt

$40.00

  • Save 29%

Drug Test Black T-Shirt - T-Shirts

Drug Test Black T-Shirt

$25.00 $35.00

  • Save 21%

4:20 Cat T-Shirt - T-Shirts

4:20 Cat Black T-Shirt

$30.00 $38.00

  • Save 21%

No Bad Trips Crystal Wash T - Shirt - T - Shirts

No Bad Trips Crystal Wash T-Shirt

from $30.00 $38.00

  • Save 25%

Miles of Smiles Black T-Shirt - T-Shirts

Miles of Smiles T-Shirt

$30.00 $40.00
The World Goes On Wash T-Shirt - T-Shirts

World Goes On T-Shirt

$40.00

More Collections

Killer Acid Cat House Doormat front product view

CATS! CATS! CATS!

Killer Acid Mushrooms Are My Friends Vintage T-Shirt front product view

Mushroom Friends

Front product shot of beige terry crewneck

On Sale

Killer Acid short sleeve t-shirts featuring original psychedelic art. Screen-printed in California on premium cotton in vintage wash, acid wash, crystal wash, and classic colorways. Every design is drawn by hand in Santa Cruz, then put on shirts you'll actually want to wear. Available in sizes S through XXXL.