Can You Pass the Acid Test? Throwback Flyer T-Shirt

Step into psychedelic history with this t-shirt featuring the original artwork from the first Acid Test, held on November 27, 1965, in Santa Cruz, California. Hosted by Ken Babbs and the Merry Pranksters, this historic event marked the beginning of a cultural revolution, and this shirt puts it all on your chest.

Before they became the Grateful Dead, they were The Warlocks—and this is the flyer that launched it all. Reproduced in stunning detail, the hypnotic eye, wavy hand-lettering, and surreal energy of the original design are screen printed in electric blue on soft black fabric. It’s not just a shirt, it’s wearable counterculture, a tribute to a night that rewrote the rules of live music, art, and experience.

Read our conversation with Ken Babbs about some of the Deads early gigs at the Acid Tests, a series of freeform, multimedia events staged by Babbs, Ken Kesey and the Merry Pranksters here.

More than a vintage nod, this tee is a tangible piece of rock and roll mythology. Whether you're a seasoned Deadhead, a collector of cultural relics, or just someone who knows a great story when they see one, this is your chance to own a rare artifact that helped shape an era.

Printed on a Gildan Softstyle tee, each shirt is made from 100% ring-spun, pre-shrunk cotton (Dark Heather is 65% polyester, 35% cotton). It features a modern unisex fit, designed for comfort and longevity—perfect for shows, record shops, or your everyday time travel.

Whether you were there, wish you were, or just love where it all began, this shirt invites you into the untamed spirit of the psychedelic revolution.

Size guide