Primitive illustration (sunglasses wearing smiley face with 'bugs in its teeth') is centered on shirt and spills over onto half of the chest pocket
True vintage "Bugs In Your Teeth Festival -San Jose" Men's Pocket T-shirt

Souvenir of unknown origin (the net yields nothing) -rare, nothing else like it out there!
Garment details date it around late 70s-early 80s
We're guessing that this may have been a prototype for some kind of motorcycle show/rally that never ended up happening?
San Jose is now the capital of Silicon Valley in Northern California, just south of San Francisco

TAG SIZE: L (42-44) (size is much smaller, closer to a modern 'Small/Medium' -see below dimensions for TRUE FIT)
CHEST MEASUREMENT (circumference around both arm pits): 38" / 96 cm
NECKLINE TO HEMLINE MEASUREMENT (length down back): 26" / 66 cm

NUMBER OF SIDES WITH GRAPHICS: 1, single-sided; blank back
COLOR: Red
MATERIAL: 50/50% cotton/polyester
BRAND: 5050 (Made in USA)

CONDITION: Very Good, gently pre-owned and well maintained vintage condition / garment is thick & soft with crisp graphics