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Front and back product shot on white background

Results May Vary Pink Acid Wash T‑Shirt

$40.00
Killer Acid Wild Shroom Rugby front product view

Wild Shroom Rugby

$95.00

  • NEW

Front flat lay showing mutated camo pattern

Mutated Camo Hoodie

$120.00

  • NEW

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

Mushrooms Are My Friends Vintage T‑Shirt

$40.00
Killer Acid Purple Heads Pullover Hoodie front product view

Purple Heads Pullover Hoodie

$85.00

  • NEW

A Walk in the Woods T-Shirt - T-Shirts

A Walk in the Woods T‑Shirt

$40.00

  • NEW

Killer Acid Melted Florals Button Up front product view

Melted Florals Button Up

$75.00

  • NEW

Killer Acid Institute Deluxe Long Sleeve - Long Sleeves

Killer Acid Institute Deluxe Long Sleeve

$60.00

  • NEW

Killer Acid Institute Deluxe T-Shirt - T-Shirts

Killer Acid Institute Deluxe T‑Shirt

$50.00

  • NEW

Killer Acid Melted Florals Shorts front product view

Melted Florals Shorts

$60.00

  • Save 11%

Front flat lay showing blue stripes and patches

Work All Day Blue Jacket

$80.00 $90.00

  • Save 25%

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

Nature is Weird Green T‑Shirt

$30.00 $40.00
Front flat lay showing haunted house design

Haunted House Glow in the Dark T‑Shirt

$40.00
Killer Acid Jungle Vibes Knit Sweater front product view

Jungle Vibes Knit Sweater

$95.00
Front flat lay showing all-over mushroom pattern

Mushroom Friends Button Up

$70.00

  • NEW

Killer Acid Cretaceous Cosmonauts T-Shirt front product view

Cretaceous Cosmonauts T‑Shirt

$40.00

  • Save 25%

Front flat lay on colored background

Mushrooms Are My Friends T‑Shirt

$30.00 $40.00

  • NEW

Killer Acid Party Animals Sweatshirt front product view

Party Animals Sweatshirt

$90.00

  • Save 30%

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

Spaced Out Deluxe Heavyweight T‑Shirt

$35.00 $50.00
Killer Acid Mushrooms Are My Friends Deluxe Hoodie front product view

Mushrooms Are My Friends Deluxe Hoodie

$95.00

  • NEW

Spaced Out Deluxe T-Shirt - T-Shirts

Space Case Deluxe T‑Shirt

$50.00

  • Save 25%

Killer Acid Microdose T-Shirt front product view

Microdose T‑Shirt

$30.00 $40.00

  • NEW

Killer Acid Party Animals Shorts front product view

Party Animals Shorts

$60.00

  • Save 22%

Front flat lay of teal terry hoodie

Killer Acid Terry Hoodie

$90.00 $115.00

  • Save 17%

Mushroom Friends Shorts - Shorts

Mushroom Friends Shorts

$50.00 $60.00
Phish Sphere Concert Hat - Hats

Phish Sphere Hat

$35.00

  • Save 25%

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

Dusk Til Dawn Vintage T‑Shirt

$30.00 $40.00

  • NEW

Hard Wired T-Shirt - T-Shirts

Hard Wired T‑Shirt

$50.00

  • NEW

Spaced Out Deluxe Long Sleeve - Long Sleeves

Space Case Deluxe Long Sleeve

$60.00
Killer Acid Cheshire Cat Pullover Hoodie front product view

Cheshire Cat Pullover Hoodie

$85.00

  • NEW

Hard Wired Long Sleeve - Long Sleeves

Hard Wired Long Sleeve

$50.00

  • Save 22%

Front product shot of beige terry crewneck

Killer Acid Terry Crewneck

$70.00 $90.00

  • NEW

Killer Acid Blue Head Pocket T-Shirt front product view

Blue Head Pocket T‑Shirt

$50.00

  • Save 26%

Dusk Til Dawn Knit Sweater - Long Sleeves

Dusk Til Dawn Knit Sweater

$70.00 $95.00
Front flat lay showing Cheshire cat design on purple

Cheshire Vintage T‑Shirt

$40.00

  • Save 25%

Socks Bundle / Buy 3 Get 1 Free - Socks

Socks Bundle / Buy 3 Get 1 Free

$45.00 $60.00

  • NEW

Killer Acid Black Wavy Cat T-Shirt front product view

Black Wavy Cat T‑Shirt

$40.00

  • Save 30%

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

Surf's Up Deluxe Heavyweight T‑Shirt

$35.00 $50.00

  • NEW

Killer Acid Wavy Cat Black Bomber Jacket front product view

Wavy Cat Black Bomber Jacket

$140.00

  • NEW

Killer Acid Melted Florals Bucket Hat front product view

Melted Florals Bucket Hat

$35.00
Front flat lay showing crystal wash with heads pattern

Purple Heads Deluxe Crystal Wash T‑Shirt

$50.00
Front flat lay showing purple heads pattern

Purple Heads Swim Trunks

$60.00

  • NEW

Killer Acid Party Animals Reversible Bucket Hat front product view

Party Animals Reversible Bucket Hat

$35.00

  • NEW

Killer Acid Mutated Camo Hat front product view

Mutated Camo Hat

$35.00
Front flat lay showing pink hoodie with design

Results May Vary Deluxe Pullover Hoodie

$95.00

  • NEW

Front flat lay of blue bomber with wavy cat print

Wavy Cat Blue Bomber Jacket

$140.00

  • NEW

Front flat lay showing mutated camo pattern

Mutated Camo Shorts

$70.00
Front flat lay showing character artwork

Pay No Mind Vintage Wash 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

The full Killer Acid clothing lineup in one place. T-shirts, hoodies, sweaters, jackets, hats, socks, shorts, and more, all featuring original psychedelic artwork. Screen printed on premium fabrics in styles ranging from vintage wash tees to bold jacquard knit sweaters. Sizes S through XXXL. Designed in Santa Cruz, California, shipped worldwide, worn by people who get it.