Celebrate one of the most iconic moments of the psychedelic era with this Can You Pass the Acid Test? throwback tee, featuring original artwork by Paul Foster, a core member of Ken Kesey’s Merry Pranksters.

First appearing on handbills and posters promoting the legendary Acid Tests of the mid-1960s — where the Grateful Dead provided the soundtrack to a whirlwind of strobe lights, films, and free-form chaos — Foster’s art remains a defining image of the counterculture. Now it’s reimagined as a wearable piece of history.

This unisex shirt is printed in bold detail on an off-white Gildan Softstyle tee, offering a classic fit with a soft hand feel. Made from 100% preshrunk cotton, it’s comfortable, durable, and ready for everyday wear.