Tap into humor and intellect with the "Shift Happens" Vintage Dad Hat — a clever nod to quantum mechanics with a washed-out, well-worn look that keeps things cool, casual, and just a little bit nerdy.
This hat isn’t just a conversation starter — it’s a vibe.
Embroidered quote: “Shift Happens — That’s Quantum Mechanics”
100% cotton twill
6-panel unstructured cap with a low profile
Adjustable strap with antique brass buckle
Black sweatband for comfort
Vintage, lived-in wash
One size fits most
Designed for thinkers, tinkerers, and laid-back geniuses